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Finding the Fourth Proportional to 511,458.24, 767,159.45 and 156,472.30

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Solution

The fourth proportional to 511,458.24, 767,159.45 and 156,472.30 is: 234,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,458.24 : 767,159.45 = 156,472.30 : x
  2. Step 2: Convert to fraction form
    511,458.24/767,159.45 = 156,472.30/x
  3. Step 3: Cross multiply
    511,458.24x = 767,159.45 × 156,472.30
  4. Step 4: Simplify right side
    511,458.24x = 120,039,203,608.24
  5. Step 5: Solve for x
    x = 120,039,203,608.24/511,458.24
  6. Step 6: Final answer
    x = 234,699.91

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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.