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Finding the Fourth Proportional to 218,920.65, 302,141.10 and 132,922.41

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Solution

The fourth proportional to 218,920.65, 302,141.10 and 132,922.41 is: 183,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,920.65 : 302,141.10 = 132,922.41 : x
  2. Step 2: Convert to fraction form
    218,920.65/302,141.10 = 132,922.41/x
  3. Step 3: Cross multiply
    218,920.65x = 302,141.10 × 132,922.41
  4. Step 4: Simplify right side
    218,920.65x = 40,161,323,172.05
  5. Step 5: Solve for x
    x = 40,161,323,172.05/218,920.65
  6. Step 6: Final answer
    x = 183,451.51

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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.