Home / 286,261.95-428,738.91-136,607.33

Finding the Fourth Proportional to 286,261.95, 428,738.91 and 136,607.33

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Solution

The fourth proportional to 286,261.95, 428,738.91 and 136,607.33 is: 204,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,261.95 : 428,738.91 = 136,607.33 : x
  2. Step 2: Convert to fraction form
    286,261.95/428,738.91 = 136,607.33/x
  3. Step 3: Cross multiply
    286,261.95x = 428,738.91 × 136,607.33
  4. Step 4: Simplify right side
    286,261.95x = 58,568,875,618.52
  5. Step 5: Solve for x
    x = 58,568,875,618.52/286,261.95
  6. Step 6: Final answer
    x = 204,598.88

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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.