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Finding the Fourth Proportional to 516,615.52, 774,924.50 and 161,630.19

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Solution

The fourth proportional to 516,615.52, 774,924.50 and 161,630.19 is: 242,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,615.52 : 774,924.50 = 161,630.19 : x
  2. Step 2: Convert to fraction form
    516,615.52/774,924.50 = 161,630.19/x
  3. Step 3: Cross multiply
    516,615.52x = 774,924.50 × 161,630.19
  4. Step 4: Simplify right side
    516,615.52x = 125,251,194,170.66
  5. Step 5: Solve for x
    x = 125,251,194,170.66/516,615.52
  6. Step 6: Final answer
    x = 242,445.67

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Similar ratio
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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.