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Finding the Fourth Proportional to 191,508, 264,282.86 and 106,626.89

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Solution

The fourth proportional to 191,508, 264,282.86 and 106,626.89 is: 147,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,508 : 264,282.86 = 106,626.89 : x
  2. Step 2: Convert to fraction form
    191,508/264,282.86 = 106,626.89/x
  3. Step 3: Cross multiply
    191,508x = 264,282.86 × 106,626.89
  4. Step 4: Simplify right side
    191,508x = 28,179,658,387.26
  5. Step 5: Solve for x
    x = 28,179,658,387.26/191,508
  6. Step 6: Final answer
    x = 147,146.12

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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.