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Finding the Fourth Proportional to 218,859.32, 328,061.34 and 92,394.02

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Solution

The fourth proportional to 218,859.32, 328,061.34 and 92,394.02 is: 138,494.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,859.32 : 328,061.34 = 92,394.02 : x
  2. Step 2: Convert to fraction form
    218,859.32/328,061.34 = 92,394.02/x
  3. Step 3: Cross multiply
    218,859.32x = 328,061.34 × 92,394.02
  4. Step 4: Simplify right side
    218,859.32x = 30,310,906,009.19
  5. Step 5: Solve for x
    x = 30,310,906,009.19/218,859.32
  6. Step 6: Final answer
    x = 138,494.93

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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.