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Finding the Fourth Proportional to 219,373.08, 329,081.22 and 91,263.08

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Solution

The fourth proportional to 219,373.08, 329,081.22 and 91,263.08 is: 136,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,373.08 : 329,081.22 = 91,263.08 : x
  2. Step 2: Convert to fraction form
    219,373.08/329,081.22 = 91,263.08/x
  3. Step 3: Cross multiply
    219,373.08x = 329,081.22 × 91,263.08
  4. Step 4: Simplify right side
    219,373.08x = 30,032,964,061.95
  5. Step 5: Solve for x
    x = 30,032,964,061.95/219,373.08
  6. Step 6: Final answer
    x = 136,903.60

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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.