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Finding the Fourth Proportional to 442,376.76, 610,306.62 and 272,315.64

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Solution

The fourth proportional to 442,376.76, 610,306.62 and 272,315.64 is: 375,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,376.76 : 610,306.62 = 272,315.64 : x
  2. Step 2: Convert to fraction form
    442,376.76/610,306.62 = 272,315.64/x
  3. Step 3: Cross multiply
    442,376.76x = 610,306.62 × 272,315.64
  4. Step 4: Simplify right side
    442,376.76x = 166,196,037,821.54
  5. Step 5: Solve for x
    x = 166,196,037,821.54/442,376.76
  6. Step 6: Final answer
    x = 375,688.90

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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.