Home / 251,188.28-346,646.21-136,465.78

Finding the Fourth Proportional to 251,188.28, 346,646.21 and 136,465.78

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Solution

The fourth proportional to 251,188.28, 346,646.21 and 136,465.78 is: 188,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,188.28 : 346,646.21 = 136,465.78 : x
  2. Step 2: Convert to fraction form
    251,188.28/346,646.21 = 136,465.78/x
  3. Step 3: Cross multiply
    251,188.28x = 346,646.21 × 136,465.78
  4. Step 4: Simplify right side
    251,188.28x = 47,305,343,016.13
  5. Step 5: Solve for x
    x = 47,305,343,016.13/251,188.28
  6. Step 6: Final answer
    x = 188,326.23

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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.