Home / 243,000.50-335,340.89-135,570.55

Finding the Fourth Proportional to 243,000.50, 335,340.89 and 135,570.55

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Solution

The fourth proportional to 243,000.50, 335,340.89 and 135,570.55 is: 187,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,000.50 : 335,340.89 = 135,570.55 : x
  2. Step 2: Convert to fraction form
    243,000.50/335,340.89 = 135,570.55/x
  3. Step 3: Cross multiply
    243,000.50x = 335,340.89 × 135,570.55
  4. Step 4: Simplify right side
    243,000.50x = 45,462,349,233.72
  5. Step 5: Solve for x
    x = 45,462,349,233.72/243,000.50
  6. Step 6: Final answer
    x = 187,087.48

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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.