Home / 251,145.28-346,578.84-136,422.88

Finding the Fourth Proportional to 251,145.28, 346,578.84 and 136,422.88

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Solution

The fourth proportional to 251,145.28, 346,578.84 and 136,422.88 is: 188,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,145.28 : 346,578.84 = 136,422.88 : x
  2. Step 2: Convert to fraction form
    251,145.28/346,578.84 = 136,422.88/x
  3. Step 3: Cross multiply
    251,145.28x = 346,578.84 × 136,422.88
  4. Step 4: Simplify right side
    251,145.28x = 47,281,283,499.86
  5. Step 5: Solve for x
    x = 47,281,283,499.86/251,145.28
  6. Step 6: Final answer
    x = 188,262.68

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1.5x scale

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.