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Finding the Fourth Proportional to 511,446.28, 767,141.58 and 156,460.30

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Solution

The fourth proportional to 511,446.28, 767,141.58 and 156,460.30 is: 234,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,446.28 : 767,141.58 = 156,460.30 : x
  2. Step 2: Convert to fraction form
    511,446.28/767,141.58 = 156,460.30/x
  3. Step 3: Cross multiply
    511,446.28x = 767,141.58 × 156,460.30
  4. Step 4: Simplify right side
    511,446.28x = 120,027,197,131.27
  5. Step 5: Solve for x
    x = 120,027,197,131.27/511,446.28
  6. Step 6: Final answer
    x = 234,681.92

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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.