Home / 252,905.11-349,004.95-138,181.30

Finding the Fourth Proportional to 252,905.11, 349,004.95 and 138,181.30

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Solution

The fourth proportional to 252,905.11, 349,004.95 and 138,181.30 is: 190,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,905.11 : 349,004.95 = 138,181.30 : x
  2. Step 2: Convert to fraction form
    252,905.11/349,004.95 = 138,181.30/x
  3. Step 3: Cross multiply
    252,905.11x = 349,004.95 × 138,181.30
  4. Step 4: Simplify right side
    252,905.11x = 48,225,956,479.47
  5. Step 5: Solve for x
    x = 48,225,956,479.47/252,905.11
  6. Step 6: Final answer
    x = 190,687.95

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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.