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Finding the Fourth Proportional to 372,142, 558,397.62 and 147,497.44

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Solution

The fourth proportional to 372,142, 558,397.62 and 147,497.44 is: 221,319.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,142 : 558,397.62 = 147,497.44 : x
  2. Step 2: Convert to fraction form
    372,142/558,397.62 = 147,497.44/x
  3. Step 3: Cross multiply
    372,142x = 558,397.62 × 147,497.44
  4. Step 4: Simplify right side
    372,142x = 82,362,219,452.09
  5. Step 5: Solve for x
    x = 82,362,219,452.09/372,142
  6. Step 6: Final answer
    x = 221,319.33

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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.