Home / 347,719.30-521,190.15-148,005.70

Finding the Fourth Proportional to 347,719.30, 521,190.15 and 148,005.70

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Solution

The fourth proportional to 347,719.30, 521,190.15 and 148,005.70 is: 221,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,719.30 : 521,190.15 = 148,005.70 : x
  2. Step 2: Convert to fraction form
    347,719.30/521,190.15 = 148,005.70/x
  3. Step 3: Cross multiply
    347,719.30x = 521,190.15 × 148,005.70
  4. Step 4: Simplify right side
    347,719.30x = 77,139,112,983.86
  5. Step 5: Solve for x
    x = 77,139,112,983.86/347,719.30
  6. Step 6: Final answer
    x = 221,843.06

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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.