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Finding the Fourth Proportional to 200,079.52, 299,787 and 140,790.76

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Solution

The fourth proportional to 200,079.52, 299,787 and 140,790.76 is: 210,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,079.52 : 299,787 = 140,790.76 : x
  2. Step 2: Convert to fraction form
    200,079.52/299,787 = 140,790.76/x
  3. Step 3: Cross multiply
    200,079.52x = 299,787 × 140,790.76
  4. Step 4: Simplify right side
    200,079.52x = 42,207,239,568.12
  5. Step 5: Solve for x
    x = 42,207,239,568.12/200,079.52
  6. Step 6: Final answer
    x = 210,952.32

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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.