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Finding the Fourth Proportional to 349,276.80, 524,145.60 and 127,660.80

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Solution

The fourth proportional to 349,276.80, 524,145.60 and 127,660.80 is: 191,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,276.80 : 524,145.60 = 127,660.80 : x
  2. Step 2: Convert to fraction form
    349,276.80/524,145.60 = 127,660.80/x
  3. Step 3: Cross multiply
    349,276.80x = 524,145.60 × 127,660.80
  4. Step 4: Simplify right side
    349,276.80x = 66,912,846,612.48
  5. Step 5: Solve for x
    x = 66,912,846,612.48/349,276.80
  6. Step 6: Final answer
    x = 191,575.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.