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Finding the Fourth Proportional to 154,911, 232,272.76 and 69,506.20

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Solution

The fourth proportional to 154,911, 232,272.76 and 69,506.20 is: 104,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,911 : 232,272.76 = 69,506.20 : x
  2. Step 2: Convert to fraction form
    154,911/232,272.76 = 69,506.20/x
  3. Step 3: Cross multiply
    154,911x = 232,272.76 × 69,506.20
  4. Step 4: Simplify right side
    154,911x = 16,144,396,911.11
  5. Step 5: Solve for x
    x = 16,144,396,911.11/154,911
  6. Step 6: Final answer
    x = 104,217.24

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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.