Home / 288,326.13-398,077.28-258,058.97

Finding the Fourth Proportional to 288,326.13, 398,077.28 and 258,058.97

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Solution

The fourth proportional to 288,326.13, 398,077.28 and 258,058.97 is: 356,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,326.13 : 398,077.28 = 258,058.97 : x
  2. Step 2: Convert to fraction form
    288,326.13/398,077.28 = 258,058.97/x
  3. Step 3: Cross multiply
    288,326.13x = 398,077.28 × 258,058.97
  4. Step 4: Simplify right side
    288,326.13x = 102,727,409,576.52
  5. Step 5: Solve for x
    x = 102,727,409,576.52/288,326.13
  6. Step 6: Final answer
    x = 356,288.93

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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.