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Finding the Fourth Proportional to 372,267.20, 558,400.80 and 147,681.20

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Solution

The fourth proportional to 372,267.20, 558,400.80 and 147,681.20 is: 221,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,267.20 : 558,400.80 = 147,681.20 : x
  2. Step 2: Convert to fraction form
    372,267.20/558,400.80 = 147,681.20/x
  3. Step 3: Cross multiply
    372,267.20x = 558,400.80 × 147,681.20
  4. Step 4: Simplify right side
    372,267.20x = 82,465,300,224.96
  5. Step 5: Solve for x
    x = 82,465,300,224.96/372,267.20
  6. Step 6: Final answer
    x = 221,521.80

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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.