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Finding the Fourth Proportional to 229,086.32, 315,018.05 and 198,819.07

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Solution

The fourth proportional to 229,086.32, 315,018.05 and 198,819.07 is: 273,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,086.32 : 315,018.05 = 198,819.07 : x
  2. Step 2: Convert to fraction form
    229,086.32/315,018.05 = 198,819.07/x
  3. Step 3: Cross multiply
    229,086.32x = 315,018.05 × 198,819.07
  4. Step 4: Simplify right side
    229,086.32x = 62,631,593,952.57
  5. Step 5: Solve for x
    x = 62,631,593,952.57/229,086.32
  6. Step 6: Final answer
    x = 273,397.36

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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.