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Finding the Fourth Proportional to 188,932.10, 260,750.13 and 108,357.90

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Solution

The fourth proportional to 188,932.10, 260,750.13 and 108,357.90 is: 149,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,932.10 : 260,750.13 = 108,357.90 : x
  2. Step 2: Convert to fraction form
    188,932.10/260,750.13 = 108,357.90/x
  3. Step 3: Cross multiply
    188,932.10x = 260,750.13 × 108,357.90
  4. Step 4: Simplify right side
    188,932.10x = 28,254,336,511.53
  5. Step 5: Solve for x
    x = 28,254,336,511.53/188,932.10
  6. Step 6: Final answer
    x = 149,547.57

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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.