Home / 251,276.40-346,748.64-138,103.20

Finding the Fourth Proportional to 251,276.40, 346,748.64 and 138,103.20

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Solution

The fourth proportional to 251,276.40, 346,748.64 and 138,103.20 is: 190,575.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,276.40 : 346,748.64 = 138,103.20 : x
  2. Step 2: Convert to fraction form
    251,276.40/346,748.64 = 138,103.20/x
  3. Step 3: Cross multiply
    251,276.40x = 346,748.64 × 138,103.20
  4. Step 4: Simplify right side
    251,276.40x = 47,887,096,779.65
  5. Step 5: Solve for x
    x = 47,887,096,779.65/251,276.40
  6. Step 6: Final answer
    x = 190,575.39

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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.