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Finding the Fourth Proportional to 203,190.71, 280,387.91 and 117,088.52

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Solution

The fourth proportional to 203,190.71, 280,387.91 and 117,088.52 is: 161,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.71 : 280,387.91 = 117,088.52 : x
  2. Step 2: Convert to fraction form
    203,190.71/280,387.91 = 117,088.52/x
  3. Step 3: Cross multiply
    203,190.71x = 280,387.91 × 117,088.52
  4. Step 4: Simplify right side
    203,190.71x = 32,830,204,298.57
  5. Step 5: Solve for x
    x = 32,830,204,298.57/203,190.71
  6. Step 6: Final answer
    x = 161,573.36

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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.