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Finding the Fourth Proportional to 203,134.76, 304,730.52 and 84,779

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Solution

The fourth proportional to 203,134.76, 304,730.52 and 84,779 is: 127,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,134.76 : 304,730.52 = 84,779 : x
  2. Step 2: Convert to fraction form
    203,134.76/304,730.52 = 84,779/x
  3. Step 3: Cross multiply
    203,134.76x = 304,730.52 × 84,779
  4. Step 4: Simplify right side
    203,134.76x = 25,834,748,331.19
  5. Step 5: Solve for x
    x = 25,834,748,331.19/203,134.76
  6. Step 6: Final answer
    x = 127,180.34

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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.