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Finding the Fourth Proportional to 154,484.70, 231,511.05 and 122,948.70

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Solution

The fourth proportional to 154,484.70, 231,511.05 and 122,948.70 is: 184,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,484.70 : 231,511.05 = 122,948.70 : x
  2. Step 2: Convert to fraction form
    154,484.70/231,511.05 = 122,948.70/x
  3. Step 3: Cross multiply
    154,484.70x = 231,511.05 × 122,948.70
  4. Step 4: Simplify right side
    154,484.70x = 28,463,982,633.14
  5. Step 5: Solve for x
    x = 28,463,982,633.14/154,484.70
  6. Step 6: Final answer
    x = 184,251.14

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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.