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Finding the Fourth Proportional to 268,895, 403,367.88 and 79,356.08

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Solution

The fourth proportional to 268,895, 403,367.88 and 79,356.08 is: 119,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,895 : 403,367.88 = 79,356.08 : x
  2. Step 2: Convert to fraction form
    268,895/403,367.88 = 79,356.08/x
  3. Step 3: Cross multiply
    268,895x = 403,367.88 × 79,356.08
  4. Step 4: Simplify right side
    268,895x = 32,009,693,754.71
  5. Step 5: Solve for x
    x = 32,009,693,754.71/268,895
  6. Step 6: Final answer
    x = 119,041.61

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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.