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Finding the Fourth Proportional to 204,043.80, 306,065.70 and 70,879.80

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Solution

The fourth proportional to 204,043.80, 306,065.70 and 70,879.80 is: 106,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,043.80 : 306,065.70 = 70,879.80 : x
  2. Step 2: Convert to fraction form
    204,043.80/306,065.70 = 70,879.80/x
  3. Step 3: Cross multiply
    204,043.80x = 306,065.70 × 70,879.80
  4. Step 4: Simplify right side
    204,043.80x = 21,693,875,602.86
  5. Step 5: Solve for x
    x = 21,693,875,602.86/204,043.80
  6. Step 6: Final answer
    x = 106,319.70

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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.