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Finding the Fourth Proportional to 118,839, 178,298.19 and 38,880.60

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Solution

The fourth proportional to 118,839, 178,298.19 and 38,880.60 is: 58,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,839 : 178,298.19 = 38,880.60 : x
  2. Step 2: Convert to fraction form
    118,839/178,298.19 = 38,880.60/x
  3. Step 3: Cross multiply
    118,839x = 178,298.19 × 38,880.60
  4. Step 4: Simplify right side
    118,839x = 6,932,340,606.11
  5. Step 5: Solve for x
    x = 6,932,340,606.11/118,839
  6. Step 6: Final answer
    x = 58,333.89

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1.5x scale

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.