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Finding the Fourth Proportional to 188,728.62, 283,047.57 and 55,572.72

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Solution

The fourth proportional to 188,728.62, 283,047.57 and 55,572.72 is: 83,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,728.62 : 283,047.57 = 55,572.72 : x
  2. Step 2: Convert to fraction form
    188,728.62/283,047.57 = 55,572.72/x
  3. Step 3: Cross multiply
    188,728.62x = 283,047.57 × 55,572.72
  4. Step 4: Simplify right side
    188,728.62x = 15,729,723,354.29
  5. Step 5: Solve for x
    x = 15,729,723,354.29/188,728.62
  6. Step 6: Final answer
    x = 83,345.72

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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.