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Finding the Fourth Proportional to 516,989.35, 775,484.31 and 162,031.03

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Solution

The fourth proportional to 516,989.35, 775,484.31 and 162,031.03 is: 243,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,989.35 : 775,484.31 = 162,031.03 : x
  2. Step 2: Convert to fraction form
    516,989.35/775,484.31 = 162,031.03/x
  3. Step 3: Cross multiply
    516,989.35x = 775,484.31 × 162,031.03
  4. Step 4: Simplify right side
    516,989.35x = 125,652,521,498.14
  5. Step 5: Solve for x
    x = 125,652,521,498.14/516,989.35
  6. Step 6: Final answer
    x = 243,046.63

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Similar ratio
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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.