Home / 254,501.20-381,425.40-142,181.20

Finding the Fourth Proportional to 254,501.20, 381,425.40 and 142,181.20

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Solution

The fourth proportional to 254,501.20, 381,425.40 and 142,181.20 is: 213,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,501.20 : 381,425.40 = 142,181.20 : x
  2. Step 2: Convert to fraction form
    254,501.20/381,425.40 = 142,181.20/x
  3. Step 3: Cross multiply
    254,501.20x = 381,425.40 × 142,181.20
  4. Step 4: Simplify right side
    254,501.20x = 54,231,521,082.48
  5. Step 5: Solve for x
    x = 54,231,521,082.48/254,501.20
  6. Step 6: Final answer
    x = 213,089.45

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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.