Home / 215,212.08-297,024.24-129,177.12

Finding the Fourth Proportional to 215,212.08, 297,024.24 and 129,177.12

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Solution

The fourth proportional to 215,212.08, 297,024.24 and 129,177.12 is: 178,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,212.08 : 297,024.24 = 129,177.12 : x
  2. Step 2: Convert to fraction form
    215,212.08/297,024.24 = 129,177.12/x
  3. Step 3: Cross multiply
    215,212.08x = 297,024.24 × 129,177.12
  4. Step 4: Simplify right side
    215,212.08x = 38,368,735,893.39
  5. Step 5: Solve for x
    x = 38,368,735,893.39/215,212.08
  6. Step 6: Final answer
    x = 178,283.37

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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.