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Finding the Fourth Proportional to 285,527.76, 394,000.92 and 158,200.80

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Solution

The fourth proportional to 285,527.76, 394,000.92 and 158,200.80 is: 218,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,527.76 : 394,000.92 = 158,200.80 : x
  2. Step 2: Convert to fraction form
    285,527.76/394,000.92 = 158,200.80/x
  3. Step 3: Cross multiply
    285,527.76x = 394,000.92 × 158,200.80
  4. Step 4: Simplify right side
    285,527.76x = 62,331,260,744.74
  5. Step 5: Solve for x
    x = 62,331,260,744.74/285,527.76
  6. Step 6: Final answer
    x = 218,301.93

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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.