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Finding the Fourth Proportional to 394,368, 591,651.78 and 110,058.50

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Solution

The fourth proportional to 394,368, 591,651.78 and 110,058.50 is: 165,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,368 : 591,651.78 = 110,058.50 : x
  2. Step 2: Convert to fraction form
    394,368/591,651.78 = 110,058.50/x
  3. Step 3: Cross multiply
    394,368x = 591,651.78 × 110,058.50
  4. Step 4: Simplify right side
    394,368x = 65,116,307,429.13
  5. Step 5: Solve for x
    x = 65,116,307,429.13/394,368
  6. Step 6: Final answer
    x = 165,115.60

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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.