Home / 347,862.90-521,490.60-134,776.20

Finding the Fourth Proportional to 347,862.90, 521,490.60 and 134,776.20

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Solution

The fourth proportional to 347,862.90, 521,490.60 and 134,776.20 is: 202,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,862.90 : 521,490.60 = 134,776.20 : x
  2. Step 2: Convert to fraction form
    347,862.90/521,490.60 = 134,776.20/x
  3. Step 3: Cross multiply
    347,862.90x = 521,490.60 × 134,776.20
  4. Step 4: Simplify right side
    347,862.90x = 70,284,521,403.72
  5. Step 5: Solve for x
    x = 70,284,521,403.72/347,862.90
  6. Step 6: Final answer
    x = 202,046.61

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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.