Home / 258,177.42-356,318.19-145,000.17

Finding the Fourth Proportional to 258,177.42, 356,318.19 and 145,000.17

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Solution

The fourth proportional to 258,177.42, 356,318.19 and 145,000.17 is: 200,118.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,177.42 : 356,318.19 = 145,000.17 : x
  2. Step 2: Convert to fraction form
    258,177.42/356,318.19 = 145,000.17/x
  3. Step 3: Cross multiply
    258,177.42x = 356,318.19 × 145,000.17
  4. Step 4: Simplify right side
    258,177.42x = 51,666,198,124.09
  5. Step 5: Solve for x
    x = 51,666,198,124.09/258,177.42
  6. Step 6: Final answer
    x = 200,118.97

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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.