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Finding the Fourth Proportional to 432,673.28, 649,071.42 and 133,178.82

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Solution

The fourth proportional to 432,673.28, 649,071.42 and 133,178.82 is: 199,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,673.28 : 649,071.42 = 133,178.82 : x
  2. Step 2: Convert to fraction form
    432,673.28/649,071.42 = 133,178.82/x
  3. Step 3: Cross multiply
    432,673.28x = 649,071.42 × 133,178.82
  4. Step 4: Simplify right side
    432,673.28x = 86,442,565,811.32
  5. Step 5: Solve for x
    x = 86,442,565,811.32/432,673.28
  6. Step 6: Final answer
    x = 199,787.16

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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.