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Finding the Fourth Proportional to 268,039.88, 369,521.36 and 219,472.28

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Solution

The fourth proportional to 268,039.88, 369,521.36 and 219,472.28 is: 302,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,039.88 : 369,521.36 = 219,472.28 : x
  2. Step 2: Convert to fraction form
    268,039.88/369,521.36 = 219,472.28/x
  3. Step 3: Cross multiply
    268,039.88x = 369,521.36 × 219,472.28
  4. Step 4: Simplify right side
    268,039.88x = 81,099,695,387.90
  5. Step 5: Solve for x
    x = 81,099,695,387.90/268,039.88
  6. Step 6: Final answer
    x = 302,565.78

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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.