Home / 243,399.10-335,889.15-135,968.18

Finding the Fourth Proportional to 243,399.10, 335,889.15 and 135,968.18

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Solution

The fourth proportional to 243,399.10, 335,889.15 and 135,968.18 is: 187,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,399.10 : 335,889.15 = 135,968.18 : x
  2. Step 2: Convert to fraction form
    243,399.10/335,889.15 = 135,968.18/x
  3. Step 3: Cross multiply
    243,399.10x = 335,889.15 × 135,968.18
  4. Step 4: Simplify right side
    243,399.10x = 45,670,236,407.25
  5. Step 5: Solve for x
    x = 45,670,236,407.25/243,399.10
  6. Step 6: Final answer
    x = 187,635.19

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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.