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Finding the Fourth Proportional to 220,009.97, 330,012.17 and 70,248.36

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Solution

The fourth proportional to 220,009.97, 330,012.17 and 70,248.36 is: 105,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,009.97 : 330,012.17 = 70,248.36 : x
  2. Step 2: Convert to fraction form
    220,009.97/330,012.17 = 70,248.36/x
  3. Step 3: Cross multiply
    220,009.97x = 330,012.17 × 70,248.36
  4. Step 4: Simplify right side
    220,009.97x = 23,182,815,267.42
  5. Step 5: Solve for x
    x = 23,182,815,267.42/220,009.97
  6. Step 6: Final answer
    x = 105,371.66

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1.5x scale

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.