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Finding the Fourth Proportional to 518,031.10, 777,151.75 and 162,962.54

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Solution

The fourth proportional to 518,031.10, 777,151.75 and 162,962.54 is: 244,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,031.10 : 777,151.75 = 162,962.54 : x
  2. Step 2: Convert to fraction form
    518,031.10/777,151.75 = 162,962.54/x
  3. Step 3: Cross multiply
    518,031.10x = 777,151.75 × 162,962.54
  4. Step 4: Simplify right side
    518,031.10x = 126,646,623,145.45
  5. Step 5: Solve for x
    x = 126,646,623,145.45/518,031.10
  6. Step 6: Final answer
    x = 244,476.87

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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.