Home / 286,261.57-428,738.34-136,606.95

Finding the Fourth Proportional to 286,261.57, 428,738.34 and 136,606.95

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Solution

The fourth proportional to 286,261.57, 428,738.34 and 136,606.95 is: 204,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,261.57 : 428,738.34 = 136,606.95 : x
  2. Step 2: Convert to fraction form
    286,261.57/428,738.34 = 136,606.95/x
  3. Step 3: Cross multiply
    286,261.57x = 428,738.34 × 136,606.95
  4. Step 4: Simplify right side
    286,261.57x = 58,568,637,487.74
  5. Step 5: Solve for x
    x = 58,568,637,487.74/286,261.57
  6. Step 6: Final answer
    x = 204,598.32

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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.