Home / 347,646.20-521,663.70-147,932.60

Finding the Fourth Proportional to 347,646.20, 521,663.70 and 147,932.60

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Solution

The fourth proportional to 347,646.20, 521,663.70 and 147,932.60 is: 221,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,646.20 : 521,663.70 = 147,932.60 : x
  2. Step 2: Convert to fraction form
    347,646.20/521,663.70 = 147,932.60/x
  3. Step 3: Cross multiply
    347,646.20x = 521,663.70 × 147,932.60
  4. Step 4: Simplify right side
    347,646.20x = 77,171,067,466.62
  5. Step 5: Solve for x
    x = 77,171,067,466.62/347,646.20
  6. Step 6: Final answer
    x = 221,981.62

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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.