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Finding the Fourth Proportional to 285,557.52, 428,336.30 and 119,345.52

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Solution

The fourth proportional to 285,557.52, 428,336.30 and 119,345.52 is: 179,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,557.52 : 428,336.30 = 119,345.52 : x
  2. Step 2: Convert to fraction form
    285,557.52/428,336.30 = 119,345.52/x
  3. Step 3: Cross multiply
    285,557.52x = 428,336.30 × 119,345.52
  4. Step 4: Simplify right side
    285,557.52x = 51,120,018,458.38
  5. Step 5: Solve for x
    x = 51,120,018,458.38/285,557.52
  6. Step 6: Final answer
    x = 179,018.29

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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.