Home / 251,851.32-347,557.14-138,678.12

Finding the Fourth Proportional to 251,851.32, 347,557.14 and 138,678.12

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Solution

The fourth proportional to 251,851.32, 347,557.14 and 138,678.12 is: 191,377.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,851.32 : 347,557.14 = 138,678.12 : x
  2. Step 2: Convert to fraction form
    251,851.32/347,557.14 = 138,678.12/x
  3. Step 3: Cross multiply
    251,851.32x = 347,557.14 × 138,678.12
  4. Step 4: Simplify right side
    251,851.32x = 48,198,570,767.78
  5. Step 5: Solve for x
    x = 48,198,570,767.78/251,851.32
  6. Step 6: Final answer
    x = 191,377.08

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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.