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Finding the Fourth Proportional to 311,433.85, 429,750.57 and 175,489.93

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Solution

The fourth proportional to 311,433.85, 429,750.57 and 175,489.93 is: 242,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,433.85 : 429,750.57 = 175,489.93 : x
  2. Step 2: Convert to fraction form
    311,433.85/429,750.57 = 175,489.93/x
  3. Step 3: Cross multiply
    311,433.85x = 429,750.57 × 175,489.93
  4. Step 4: Simplify right side
    311,433.85x = 75,416,897,446.76
  5. Step 5: Solve for x
    x = 75,416,897,446.76/311,433.85
  6. Step 6: Final answer
    x = 242,160.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.