Home / 254,455.10-382,059.30-142,359.20

Finding the Fourth Proportional to 254,455.10, 382,059.30 and 142,359.20

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Solution

The fourth proportional to 254,455.10, 382,059.30 and 142,359.20 is: 213,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,455.10 : 382,059.30 = 142,359.20 : x
  2. Step 2: Convert to fraction form
    254,455.10/382,059.30 = 142,359.20/x
  3. Step 3: Cross multiply
    254,455.10x = 382,059.30 × 142,359.20
  4. Step 4: Simplify right side
    254,455.10x = 54,389,656,300.56
  5. Step 5: Solve for x
    x = 54,389,656,300.56/254,455.10
  6. Step 6: Final answer
    x = 213,749.52

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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.