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Finding the Fourth Proportional to 186,843.60, 280,265.40 and 112,048.20

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Solution

The fourth proportional to 186,843.60, 280,265.40 and 112,048.20 is: 168,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,843.60 : 280,265.40 = 112,048.20 : x
  2. Step 2: Convert to fraction form
    186,843.60/280,265.40 = 112,048.20/x
  3. Step 3: Cross multiply
    186,843.60x = 280,265.40 × 112,048.20
  4. Step 4: Simplify right side
    186,843.60x = 31,403,233,592.28
  5. Step 5: Solve for x
    x = 31,403,233,592.28/186,843.60
  6. Step 6: Final answer
    x = 168,072.30

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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.