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Finding the Fourth Proportional to 218,879.52, 302,073.53 and 132,860.40

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Solution

The fourth proportional to 218,879.52, 302,073.53 and 132,860.40 is: 183,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,879.52 : 302,073.53 = 132,860.40 : x
  2. Step 2: Convert to fraction form
    218,879.52/302,073.53 = 132,860.40/x
  3. Step 3: Cross multiply
    218,879.52x = 302,073.53 × 132,860.40
  4. Step 4: Simplify right side
    218,879.52x = 40,133,610,300.97
  5. Step 5: Solve for x
    x = 40,133,610,300.97/218,879.52
  6. Step 6: Final answer
    x = 183,359.37

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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.