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Finding the Fourth Proportional to 311,060.76, 429,241.50 and 175,087.68

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Solution

The fourth proportional to 311,060.76, 429,241.50 and 175,087.68 is: 241,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,060.76 : 429,241.50 = 175,087.68 : x
  2. Step 2: Convert to fraction form
    311,060.76/429,241.50 = 175,087.68/x
  3. Step 3: Cross multiply
    311,060.76x = 429,241.50 × 175,087.68
  4. Step 4: Simplify right side
    311,060.76x = 75,154,898,394.72
  5. Step 5: Solve for x
    x = 75,154,898,394.72/311,060.76
  6. Step 6: Final answer
    x = 241,608.42

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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.