Home / 254,400.90-381,644.55-136,040.10

Finding the Fourth Proportional to 254,400.90, 381,644.55 and 136,040.10

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Solution

The fourth proportional to 254,400.90, 381,644.55 and 136,040.10 is: 204,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,400.90 : 381,644.55 = 136,040.10 : x
  2. Step 2: Convert to fraction form
    254,400.90/381,644.55 = 136,040.10/x
  3. Step 3: Cross multiply
    254,400.90x = 381,644.55 × 136,040.10
  4. Step 4: Simplify right side
    254,400.90x = 51,918,962,746.46
  5. Step 5: Solve for x
    x = 51,918,962,746.46/254,400.90
  6. Step 6: Final answer
    x = 204,083.25

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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.