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Finding the Fourth Proportional to 424,842.30, 586,213.79 and 243,520.88

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Solution

The fourth proportional to 424,842.30, 586,213.79 and 243,520.88 is: 336,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,842.30 : 586,213.79 = 243,520.88 : x
  2. Step 2: Convert to fraction form
    424,842.30/586,213.79 = 243,520.88/x
  3. Step 3: Cross multiply
    424,842.30x = 586,213.79 × 243,520.88
  4. Step 4: Simplify right side
    424,842.30x = 142,755,293,860.26
  5. Step 5: Solve for x
    x = 142,755,293,860.26/424,842.30
  6. Step 6: Final answer
    x = 336,019.49

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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.