Home / 409,287.20-614,014.14-172,630.76

Finding the Fourth Proportional to 409,287.20, 614,014.14 and 172,630.76

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Solution

The fourth proportional to 409,287.20, 614,014.14 and 172,630.76 is: 258,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,287.20 : 614,014.14 = 172,630.76 : x
  2. Step 2: Convert to fraction form
    409,287.20/614,014.14 = 172,630.76/x
  3. Step 3: Cross multiply
    409,287.20x = 614,014.14 × 172,630.76
  4. Step 4: Simplify right side
    409,287.20x = 105,997,727,638.95
  5. Step 5: Solve for x
    x = 105,997,727,638.95/409,287.20
  6. Step 6: Final answer
    x = 258,981.29

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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.