Home / 215,394.27-297,277.50-129,401.11

Finding the Fourth Proportional to 215,394.27, 297,277.50 and 129,401.11

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Solution

The fourth proportional to 215,394.27, 297,277.50 and 129,401.11 is: 178,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,394.27 : 297,277.50 = 129,401.11 : x
  2. Step 2: Convert to fraction form
    215,394.27/297,277.50 = 129,401.11/x
  3. Step 3: Cross multiply
    215,394.27x = 297,277.50 × 129,401.11
  4. Step 4: Simplify right side
    215,394.27x = 38,468,038,478.03
  5. Step 5: Solve for x
    x = 38,468,038,478.03/215,394.27
  6. Step 6: Final answer
    x = 178,593.60

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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.