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Finding the Fourth Proportional to 279,584.67, 385,830.96 and 152,259.96

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Solution

The fourth proportional to 279,584.67, 385,830.96 and 152,259.96 is: 210,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,584.67 : 385,830.96 = 152,259.96 : x
  2. Step 2: Convert to fraction form
    279,584.67/385,830.96 = 152,259.96/x
  3. Step 3: Cross multiply
    279,584.67x = 385,830.96 × 152,259.96
  4. Step 4: Simplify right side
    279,584.67x = 58,746,604,607.21
  5. Step 5: Solve for x
    x = 58,746,604,607.21/279,584.67
  6. Step 6: Final answer
    x = 210,120.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.