Home / 215,520.78-297,418.56-124,929.24

Finding the Fourth Proportional to 215,520.78, 297,418.56 and 124,929.24

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Solution

The fourth proportional to 215,520.78, 297,418.56 and 124,929.24 is: 172,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,520.78 : 297,418.56 = 124,929.24 : x
  2. Step 2: Convert to fraction form
    215,520.78/297,418.56 = 124,929.24/x
  3. Step 3: Cross multiply
    215,520.78x = 297,418.56 × 124,929.24
  4. Step 4: Simplify right side
    215,520.78x = 37,156,273,430.25
  5. Step 5: Solve for x
    x = 37,156,273,430.25/215,520.78
  6. Step 6: Final answer
    x = 172,402.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.