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Finding the Fourth Proportional to 220,569.19, 330,853.78 and 54,357.19

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Solution

The fourth proportional to 220,569.19, 330,853.78 and 54,357.19 is: 81,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,569.19 : 330,853.78 = 54,357.19 : x
  2. Step 2: Convert to fraction form
    220,569.19/330,853.78 = 54,357.19/x
  3. Step 3: Cross multiply
    220,569.19x = 330,853.78 × 54,357.19
  4. Step 4: Simplify right side
    220,569.19x = 17,984,281,022.49
  5. Step 5: Solve for x
    x = 17,984,281,022.49/220,569.19
  6. Step 6: Final answer
    x = 81,535.78

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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.