Home / 243,721.30-336,344.57-136,291.07

Finding the Fourth Proportional to 243,721.30, 336,344.57 and 136,291.07

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Solution

The fourth proportional to 243,721.30, 336,344.57 and 136,291.07 is: 188,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,721.30 : 336,344.57 = 136,291.07 : x
  2. Step 2: Convert to fraction form
    243,721.30/336,344.57 = 136,291.07/x
  3. Step 3: Cross multiply
    243,721.30x = 336,344.57 × 136,291.07
  4. Step 4: Simplify right side
    243,721.30x = 45,840,761,333.99
  5. Step 5: Solve for x
    x = 45,840,761,333.99/243,721.30
  6. Step 6: Final answer
    x = 188,086.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.