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Finding the Fourth Proportional to 154,990.66, 232,510.30 and 66,244.62

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Solution

The fourth proportional to 154,990.66, 232,510.30 and 66,244.62 is: 99,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,990.66 : 232,510.30 = 66,244.62 : x
  2. Step 2: Convert to fraction form
    154,990.66/232,510.30 = 66,244.62/x
  3. Step 3: Cross multiply
    154,990.66x = 232,510.30 × 66,244.62
  4. Step 4: Simplify right side
    154,990.66x = 15,402,556,469.59
  5. Step 5: Solve for x
    x = 15,402,556,469.59/154,990.66
  6. Step 6: Final answer
    x = 99,377.32

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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.