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Finding the Fourth Proportional to 628,674.87, 943,003.08 and 155,360.22

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Solution

The fourth proportional to 628,674.87, 943,003.08 and 155,360.22 is: 233,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,674.87 : 943,003.08 = 155,360.22 : x
  2. Step 2: Convert to fraction form
    628,674.87/943,003.08 = 155,360.22/x
  3. Step 3: Cross multiply
    628,674.87x = 943,003.08 × 155,360.22
  4. Step 4: Simplify right side
    628,674.87x = 146,505,165,969.48
  5. Step 5: Solve for x
    x = 146,505,165,969.48/628,674.87
  6. Step 6: Final answer
    x = 233,038.05

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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.