Home / 258,382.28-356,565.30-145,204.76

Finding the Fourth Proportional to 258,382.28, 356,565.30 and 145,204.76

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Solution

The fourth proportional to 258,382.28, 356,565.30 and 145,204.76 is: 200,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,382.28 : 356,565.30 = 145,204.76 : x
  2. Step 2: Convert to fraction form
    258,382.28/356,565.30 = 145,204.76/x
  3. Step 3: Cross multiply
    258,382.28x = 356,565.30 × 145,204.76
  4. Step 4: Simplify right side
    258,382.28x = 51,774,978,810.83
  5. Step 5: Solve for x
    x = 51,774,978,810.83/258,382.28
  6. Step 6: Final answer
    x = 200,381.31

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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.