Home / 328,955.10-493,432.65-141,966.60

Finding the Fourth Proportional to 328,955.10, 493,432.65 and 141,966.60

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Solution

The fourth proportional to 328,955.10, 493,432.65 and 141,966.60 is: 212,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,955.10 : 493,432.65 = 141,966.60 : x
  2. Step 2: Convert to fraction form
    328,955.10/493,432.65 = 141,966.60/x
  3. Step 3: Cross multiply
    328,955.10x = 493,432.65 × 141,966.60
  4. Step 4: Simplify right side
    328,955.10x = 70,050,955,649.49
  5. Step 5: Solve for x
    x = 70,050,955,649.49/328,955.10
  6. Step 6: Final answer
    x = 212,949.90

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Similar ratio
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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.