Home / 243,720.30-336,343.19-136,290.07

Finding the Fourth Proportional to 243,720.30, 336,343.19 and 136,290.07

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Solution

The fourth proportional to 243,720.30, 336,343.19 and 136,290.07 is: 188,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,720.30 : 336,343.19 = 136,290.07 : x
  2. Step 2: Convert to fraction form
    243,720.30/336,343.19 = 136,290.07/x
  3. Step 3: Cross multiply
    243,720.30x = 336,343.19 × 136,290.07
  4. Step 4: Simplify right side
    243,720.30x = 45,840,236,648.10
  5. Step 5: Solve for x
    x = 45,840,236,648.10/243,720.30
  6. Step 6: Final answer
    x = 188,085.42

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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.