Home / 217,930.48-327,387.81-129,242.16

Finding the Fourth Proportional to 217,930.48, 327,387.81 and 129,242.16

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Solution

The fourth proportional to 217,930.48, 327,387.81 and 129,242.16 is: 194,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,930.48 : 327,387.81 = 129,242.16 : x
  2. Step 2: Convert to fraction form
    217,930.48/327,387.81 = 129,242.16/x
  3. Step 3: Cross multiply
    217,930.48x = 327,387.81 × 129,242.16
  4. Step 4: Simplify right side
    217,930.48x = 42,312,308,206.73
  5. Step 5: Solve for x
    x = 42,312,308,206.73/217,930.48
  6. Step 6: Final answer
    x = 194,155.08

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1.5x scale

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.