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Finding the Fourth Proportional to 205,036.60, 307,554.90 and 125,894.20

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Solution

The fourth proportional to 205,036.60, 307,554.90 and 125,894.20 is: 188,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,036.60 : 307,554.90 = 125,894.20 : x
  2. Step 2: Convert to fraction form
    205,036.60/307,554.90 = 125,894.20/x
  3. Step 3: Cross multiply
    205,036.60x = 307,554.90 × 125,894.20
  4. Step 4: Simplify right side
    205,036.60x = 38,719,378,091.58
  5. Step 5: Solve for x
    x = 38,719,378,091.58/205,036.60
  6. Step 6: Final answer
    x = 188,841.30

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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.