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Finding the Fourth Proportional to 251,284.60, 346,768.72 and 138,104.92

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Solution

The fourth proportional to 251,284.60, 346,768.72 and 138,104.92 is: 190,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,284.60 : 346,768.72 = 138,104.92 : x
  2. Step 2: Convert to fraction form
    251,284.60/346,768.72 = 138,104.92/x
  3. Step 3: Cross multiply
    251,284.60x = 346,768.72 × 138,104.92
  4. Step 4: Simplify right side
    251,284.60x = 47,890,466,334.10
  5. Step 5: Solve for x
    x = 47,890,466,334.10/251,284.60
  6. Step 6: Final answer
    x = 190,582.58

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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.