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Finding the Fourth Proportional to 251,280.60, 346,763.34 and 138,100.92

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Solution

The fourth proportional to 251,280.60, 346,763.34 and 138,100.92 is: 190,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,280.60 : 346,763.34 = 138,100.92 : x
  2. Step 2: Convert to fraction form
    251,280.60/346,763.34 = 138,100.92/x
  3. Step 3: Cross multiply
    251,280.60x = 346,763.34 × 138,100.92
  4. Step 4: Simplify right side
    251,280.60x = 47,888,336,276.27
  5. Step 5: Solve for x
    x = 47,888,336,276.27/251,280.60
  6. Step 6: Final answer
    x = 190,577.13

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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.