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Finding the Fourth Proportional to 220,947, 330,802.98 and 119,381.24

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Solution

The fourth proportional to 220,947, 330,802.98 and 119,381.24 is: 178,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,947 : 330,802.98 = 119,381.24 : x
  2. Step 2: Convert to fraction form
    220,947/330,802.98 = 119,381.24/x
  3. Step 3: Cross multiply
    220,947x = 330,802.98 × 119,381.24
  4. Step 4: Simplify right side
    220,947x = 39,491,669,948.10
  5. Step 5: Solve for x
    x = 39,491,669,948.10/220,947
  6. Step 6: Final answer
    x = 178,738.20

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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.