Home / 243,278.55-335,724.89-135,848.25

Finding the Fourth Proportional to 243,278.55, 335,724.89 and 135,848.25

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Solution

The fourth proportional to 243,278.55, 335,724.89 and 135,848.25 is: 187,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,278.55 : 335,724.89 = 135,848.25 : x
  2. Step 2: Convert to fraction form
    243,278.55/335,724.89 = 135,848.25/x
  3. Step 3: Cross multiply
    243,278.55x = 335,724.89 × 135,848.25
  4. Step 4: Simplify right side
    243,278.55x = 45,607,638,108.70
  5. Step 5: Solve for x
    x = 45,607,638,108.70/243,278.55
  6. Step 6: Final answer
    x = 187,470.86

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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.