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Finding the Fourth Proportional to 308,396.18, 425,457.80 and 240,294.92

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Solution

The fourth proportional to 308,396.18, 425,457.80 and 240,294.92 is: 331,506.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,396.18 : 425,457.80 = 240,294.92 : x
  2. Step 2: Convert to fraction form
    308,396.18/425,457.80 = 240,294.92/x
  3. Step 3: Cross multiply
    308,396.18x = 425,457.80 × 240,294.92
  4. Step 4: Simplify right side
    308,396.18x = 102,235,344,685.61
  5. Step 5: Solve for x
    x = 102,235,344,685.61/308,396.18
  6. Step 6: Final answer
    x = 331,506.53

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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.