Home / 258,115.36-387,242.08-233,439.52

Finding the Fourth Proportional to 258,115.36, 387,242.08 and 233,439.52

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Solution

The fourth proportional to 258,115.36, 387,242.08 and 233,439.52 is: 350,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,115.36 : 387,242.08 = 233,439.52 : x
  2. Step 2: Convert to fraction form
    258,115.36/387,242.08 = 233,439.52/x
  3. Step 3: Cross multiply
    258,115.36x = 387,242.08 × 233,439.52
  4. Step 4: Simplify right side
    258,115.36x = 90,397,605,279.00
  5. Step 5: Solve for x
    x = 90,397,605,279.00/258,115.36
  6. Step 6: Final answer
    x = 350,221.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.