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Finding the Fourth Proportional to 330,154.31, 495,302.51 and 102,445.39

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Solution

The fourth proportional to 330,154.31, 495,302.51 and 102,445.39 is: 153,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,154.31 : 495,302.51 = 102,445.39 : x
  2. Step 2: Convert to fraction form
    330,154.31/495,302.51 = 102,445.39/x
  3. Step 3: Cross multiply
    330,154.31x = 495,302.51 × 102,445.39
  4. Step 4: Simplify right side
    330,154.31x = 50,741,459,680.17
  5. Step 5: Solve for x
    x = 50,741,459,680.17/330,154.31
  6. Step 6: Final answer
    x = 153,690.13

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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.