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Finding the Fourth Proportional to 218,844, 328,395.06 and 92,476.08

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Solution

The fourth proportional to 218,844, 328,395.06 and 92,476.08 is: 138,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,844 : 328,395.06 = 92,476.08 : x
  2. Step 2: Convert to fraction form
    218,844/328,395.06 = 92,476.08/x
  3. Step 3: Cross multiply
    218,844x = 328,395.06 × 92,476.08
  4. Step 4: Simplify right side
    218,844x = 30,368,687,840.16
  5. Step 5: Solve for x
    x = 30,368,687,840.16/218,844
  6. Step 6: Final answer
    x = 138,768.66

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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.