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Finding the Fourth Proportional to 297,711.60, 447,085.80 and 157,743.60

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Solution

The fourth proportional to 297,711.60, 447,085.80 and 157,743.60 is: 236,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,711.60 : 447,085.80 = 157,743.60 : x
  2. Step 2: Convert to fraction form
    297,711.60/447,085.80 = 157,743.60/x
  3. Step 3: Cross multiply
    297,711.60x = 447,085.80 × 157,743.60
  4. Step 4: Simplify right side
    297,711.60x = 70,524,923,600.88
  5. Step 5: Solve for x
    x = 70,524,923,600.88/297,711.60
  6. Step 6: Final answer
    x = 236,890.08

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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.