Home / 255,728.39-383,703.19-137,261.32

Finding the Fourth Proportional to 255,728.39, 383,703.19 and 137,261.32

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Solution

The fourth proportional to 255,728.39, 383,703.19 and 137,261.32 is: 205,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,728.39 : 383,703.19 = 137,261.32 : x
  2. Step 2: Convert to fraction form
    255,728.39/383,703.19 = 137,261.32/x
  3. Step 3: Cross multiply
    255,728.39x = 383,703.19 × 137,261.32
  4. Step 4: Simplify right side
    255,728.39x = 52,667,605,045.20
  5. Step 5: Solve for x
    x = 52,667,605,045.20/255,728.39
  6. Step 6: Final answer
    x = 205,951.35

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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.