Home / 243,000.55-335,340.97-135,570.61

Finding the Fourth Proportional to 243,000.55, 335,340.97 and 135,570.61

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Solution

The fourth proportional to 243,000.55, 335,340.97 and 135,570.61 is: 187,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,000.55 : 335,340.97 = 135,570.61 : x
  2. Step 2: Convert to fraction form
    243,000.55/335,340.97 = 135,570.61/x
  3. Step 3: Cross multiply
    243,000.55x = 335,340.97 × 135,570.61
  4. Step 4: Simplify right side
    243,000.55x = 45,462,378,184.19
  5. Step 5: Solve for x
    x = 45,462,378,184.19/243,000.55
  6. Step 6: Final answer
    x = 187,087.55

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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.