Home / 347,977.90-521,663.10-134,891.20

Finding the Fourth Proportional to 347,977.90, 521,663.10 and 134,891.20

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Solution

The fourth proportional to 347,977.90, 521,663.10 and 134,891.20 is: 202,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,977.90 : 521,663.10 = 134,891.20 : x
  2. Step 2: Convert to fraction form
    347,977.90/521,663.10 = 134,891.20/x
  3. Step 3: Cross multiply
    347,977.90x = 521,663.10 × 134,891.20
  4. Step 4: Simplify right side
    347,977.90x = 70,367,761,554.72
  5. Step 5: Solve for x
    x = 70,367,761,554.72/347,977.90
  6. Step 6: Final answer
    x = 202,219.05

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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.