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Finding the Fourth Proportional to 403,453.98, 556,760.25 and 240,224.40

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Solution

The fourth proportional to 403,453.98, 556,760.25 and 240,224.40 is: 331,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,453.98 : 556,760.25 = 240,224.40 : x
  2. Step 2: Convert to fraction form
    403,453.98/556,760.25 = 240,224.40/x
  3. Step 3: Cross multiply
    403,453.98x = 556,760.25 × 240,224.40
  4. Step 4: Simplify right side
    403,453.98x = 133,747,397,000.10
  5. Step 5: Solve for x
    x = 133,747,397,000.10/403,453.98
  6. Step 6: Final answer
    x = 331,505.96

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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.