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Finding the Fourth Proportional to 154,658, 231,821.16 and 101,329.84

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Solution

The fourth proportional to 154,658, 231,821.16 and 101,329.84 is: 151,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,658 : 231,821.16 = 101,329.84 : x
  2. Step 2: Convert to fraction form
    154,658/231,821.16 = 101,329.84/x
  3. Step 3: Cross multiply
    154,658x = 231,821.16 × 101,329.84
  4. Step 4: Simplify right side
    154,658x = 23,490,401,051.41
  5. Step 5: Solve for x
    x = 23,490,401,051.41/154,658
  6. Step 6: Final answer
    x = 151,886.10

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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.