Home / 254,431.10-382,023.30-142,335.20

Finding the Fourth Proportional to 254,431.10, 382,023.30 and 142,335.20

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Solution

The fourth proportional to 254,431.10, 382,023.30 and 142,335.20 is: 213,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,431.10 : 382,023.30 = 142,335.20 : x
  2. Step 2: Convert to fraction form
    254,431.10/382,023.30 = 142,335.20/x
  3. Step 3: Cross multiply
    254,431.10x = 382,023.30 × 142,335.20
  4. Step 4: Simplify right side
    254,431.10x = 54,375,362,810.16
  5. Step 5: Solve for x
    x = 54,375,362,810.16/254,431.10
  6. Step 6: Final answer
    x = 213,713.51

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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.