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Finding the Fourth Proportional to 203,502.65, 280,930.07 and 135,632.75

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Solution

The fourth proportional to 203,502.65, 280,930.07 and 135,632.75 is: 187,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,502.65 : 280,930.07 = 135,632.75 : x
  2. Step 2: Convert to fraction form
    203,502.65/280,930.07 = 135,632.75/x
  3. Step 3: Cross multiply
    203,502.65x = 280,930.07 × 135,632.75
  4. Step 4: Simplify right side
    203,502.65x = 38,103,316,886.22
  5. Step 5: Solve for x
    x = 38,103,316,886.22/203,502.65
  6. Step 6: Final answer
    x = 187,237.45

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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.