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Finding the Fourth Proportional to 311,025.90, 466,612.88 and 100,663.84

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Solution

The fourth proportional to 311,025.90, 466,612.88 and 100,663.84 is: 151,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,025.90 : 466,612.88 = 100,663.84 : x
  2. Step 2: Convert to fraction form
    311,025.90/466,612.88 = 100,663.84/x
  3. Step 3: Cross multiply
    311,025.90x = 466,612.88 × 100,663.84
  4. Step 4: Simplify right side
    311,025.90x = 46,971,044,294.26
  5. Step 5: Solve for x
    x = 46,971,044,294.26/311,025.90
  6. Step 6: Final answer
    x = 151,019.72

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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.