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Finding the Fourth Proportional to 424,722.88, 637,084.28 and 109,180.08

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Solution

The fourth proportional to 424,722.88, 637,084.28 and 109,180.08 is: 163,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,722.88 : 637,084.28 = 109,180.08 : x
  2. Step 2: Convert to fraction form
    424,722.88/637,084.28 = 109,180.08/x
  3. Step 3: Cross multiply
    424,722.88x = 637,084.28 × 109,180.08
  4. Step 4: Simplify right side
    424,722.88x = 69,556,912,657.14
  5. Step 5: Solve for x
    x = 69,556,912,657.14/424,722.88
  6. Step 6: Final answer
    x = 163,770.11

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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.