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Finding the Fourth Proportional to 285,191.87, 427,640.18 and 152,036.37

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Solution

The fourth proportional to 285,191.87, 427,640.18 and 152,036.37 is: 227,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,191.87 : 427,640.18 = 152,036.37 : x
  2. Step 2: Convert to fraction form
    285,191.87/427,640.18 = 152,036.37/x
  3. Step 3: Cross multiply
    285,191.87x = 427,640.18 × 152,036.37
  4. Step 4: Simplify right side
    285,191.87x = 65,016,859,873.16
  5. Step 5: Solve for x
    x = 65,016,859,873.16/285,191.87
  6. Step 6: Final answer
    x = 227,975.86

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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.