Home / 393,004.29-589,630.98-140,279.18

Finding the Fourth Proportional to 393,004.29, 589,630.98 and 140,279.18

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Solution

The fourth proportional to 393,004.29, 589,630.98 and 140,279.18 is: 210,463.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,004.29 : 589,630.98 = 140,279.18 : x
  2. Step 2: Convert to fraction form
    393,004.29/589,630.98 = 140,279.18/x
  3. Step 3: Cross multiply
    393,004.29x = 589,630.98 × 140,279.18
  4. Step 4: Simplify right side
    393,004.29x = 82,712,950,377.00
  5. Step 5: Solve for x
    x = 82,712,950,377.00/393,004.29
  6. Step 6: Final answer
    x = 210,463.23

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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.