Home / 251,143.28-346,576.08-136,420.88

Finding the Fourth Proportional to 251,143.28, 346,576.08 and 136,420.88

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Solution

The fourth proportional to 251,143.28, 346,576.08 and 136,420.88 is: 188,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,143.28 : 346,576.08 = 136,420.88 : x
  2. Step 2: Convert to fraction form
    251,143.28/346,576.08 = 136,420.88/x
  3. Step 3: Cross multiply
    251,143.28x = 346,576.08 × 136,420.88
  4. Step 4: Simplify right side
    251,143.28x = 47,280,213,820.55
  5. Step 5: Solve for x
    x = 47,280,213,820.55/251,143.28
  6. Step 6: Final answer
    x = 188,259.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.