Home / 445,031.18-667,587.81-145,513.30

Finding the Fourth Proportional to 445,031.18, 667,587.81 and 145,513.30

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Solution

The fourth proportional to 445,031.18, 667,587.81 and 145,513.30 is: 218,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,031.18 : 667,587.81 = 145,513.30 : x
  2. Step 2: Convert to fraction form
    445,031.18/667,587.81 = 145,513.30/x
  3. Step 3: Cross multiply
    445,031.18x = 667,587.81 × 145,513.30
  4. Step 4: Simplify right side
    445,031.18x = 97,142,901,934.93
  5. Step 5: Solve for x
    x = 97,142,901,934.93/445,031.18
  6. Step 6: Final answer
    x = 218,283.36

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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.