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Finding the Fourth Proportional to 445,052.32, 666,471.28 and 311,306.32

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Solution

The fourth proportional to 445,052.32, 666,471.28 and 311,306.32 is: 466,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,052.32 : 666,471.28 = 311,306.32 : x
  2. Step 2: Convert to fraction form
    445,052.32/666,471.28 = 311,306.32/x
  3. Step 3: Cross multiply
    445,052.32x = 666,471.28 × 311,306.32
  4. Step 4: Simplify right side
    445,052.32x = 207,476,721,562.49
  5. Step 5: Solve for x
    x = 207,476,721,562.49/445,052.32
  6. Step 6: Final answer
    x = 466,185.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.