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Finding the Fourth Proportional to 543,627.62, 815,378.06 and 144,299.42

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Solution

The fourth proportional to 543,627.62, 815,378.06 and 144,299.42 is: 216,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,627.62 : 815,378.06 = 144,299.42 : x
  2. Step 2: Convert to fraction form
    543,627.62/815,378.06 = 144,299.42/x
  3. Step 3: Cross multiply
    543,627.62x = 815,378.06 × 144,299.42
  4. Step 4: Simplify right side
    543,627.62x = 117,658,577,422.58
  5. Step 5: Solve for x
    x = 117,658,577,422.58/543,627.62
  6. Step 6: Final answer
    x = 216,432.30

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1.5x scale

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.