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Finding the Fourth Proportional to 155,241.92, 232,870.39 and 42,919.65

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Solution

The fourth proportional to 155,241.92, 232,870.39 and 42,919.65 is: 64,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,241.92 : 232,870.39 = 42,919.65 : x
  2. Step 2: Convert to fraction form
    155,241.92/232,870.39 = 42,919.65/x
  3. Step 3: Cross multiply
    155,241.92x = 232,870.39 × 42,919.65
  4. Step 4: Simplify right side
    155,241.92x = 9,994,715,212.94
  5. Step 5: Solve for x
    x = 9,994,715,212.94/155,241.92
  6. Step 6: Final answer
    x = 64,381.55

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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.