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Finding the Fourth Proportional to 311,526, 429,905.88 and 177,415.92

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Solution

The fourth proportional to 311,526, 429,905.88 and 177,415.92 is: 244,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,526 : 429,905.88 = 177,415.92 : x
  2. Step 2: Convert to fraction form
    311,526/429,905.88 = 177,415.92/x
  3. Step 3: Cross multiply
    311,526x = 429,905.88 × 177,415.92
  4. Step 4: Simplify right side
    311,526x = 76,272,147,213.61
  5. Step 5: Solve for x
    x = 76,272,147,213.61/311,526
  6. Step 6: Final answer
    x = 244,833.97

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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.