Home / 347,789.80-521,490.30-148,076.20

Finding the Fourth Proportional to 347,789.80, 521,490.30 and 148,076.20

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Solution

The fourth proportional to 347,789.80, 521,490.30 and 148,076.20 is: 222,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,789.80 : 521,490.30 = 148,076.20 : x
  2. Step 2: Convert to fraction form
    347,789.80/521,490.30 = 148,076.20/x
  3. Step 3: Cross multiply
    347,789.80x = 521,490.30 × 148,076.20
  4. Step 4: Simplify right side
    347,789.80x = 77,220,301,960.86
  5. Step 5: Solve for x
    x = 77,220,301,960.86/347,789.80
  6. Step 6: Final answer
    x = 222,031.53

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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.