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Finding the Fourth Proportional to 286,348.18, 395,358.18 and 178,966.48

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Solution

The fourth proportional to 286,348.18, 395,358.18 and 178,966.48 is: 247,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,348.18 : 395,358.18 = 178,966.48 : x
  2. Step 2: Convert to fraction form
    286,348.18/395,358.18 = 178,966.48/x
  3. Step 3: Cross multiply
    286,348.18x = 395,358.18 × 178,966.48
  4. Step 4: Simplify right side
    286,348.18x = 70,755,861,813.81
  5. Step 5: Solve for x
    x = 70,755,861,813.81/286,348.18
  6. Step 6: Final answer
    x = 247,097.30

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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.