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Finding the Fourth Proportional to 203,200.74, 280,404.68 and 112,551.42

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Solution

The fourth proportional to 203,200.74, 280,404.68 and 112,551.42 is: 155,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,200.74 : 280,404.68 = 112,551.42 : x
  2. Step 2: Convert to fraction form
    203,200.74/280,404.68 = 112,551.42/x
  3. Step 3: Cross multiply
    203,200.74x = 280,404.68 × 112,551.42
  4. Step 4: Simplify right side
    203,200.74x = 31,559,944,908.65
  5. Step 5: Solve for x
    x = 31,559,944,908.65/203,200.74
  6. Step 6: Final answer
    x = 155,314.12

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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.