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Finding the Fourth Proportional to 361,470.40, 498,514.80 and 271,029.76

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Solution

The fourth proportional to 361,470.40, 498,514.80 and 271,029.76 is: 373,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,470.40 : 498,514.80 = 271,029.76 : x
  2. Step 2: Convert to fraction form
    361,470.40/498,514.80 = 271,029.76/x
  3. Step 3: Cross multiply
    361,470.40x = 498,514.80 × 271,029.76
  4. Step 4: Simplify right side
    361,470.40x = 135,112,346,600.45
  5. Step 5: Solve for x
    x = 135,112,346,600.45/361,470.40
  6. Step 6: Final answer
    x = 373,785.37

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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.