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Finding the Fourth Proportional to 575,998.60, 863,997.90 and 155,259.40

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Solution

The fourth proportional to 575,998.60, 863,997.90 and 155,259.40 is: 232,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,998.60 : 863,997.90 = 155,259.40 : x
  2. Step 2: Convert to fraction form
    575,998.60/863,997.90 = 155,259.40/x
  3. Step 3: Cross multiply
    575,998.60x = 863,997.90 × 155,259.40
  4. Step 4: Simplify right side
    575,998.60x = 134,143,795,555.26
  5. Step 5: Solve for x
    x = 134,143,795,555.26/575,998.60
  6. Step 6: Final answer
    x = 232,889.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.