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Finding the Fourth Proportional to 540,286.80, 809,934.80 and 207,612.24

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Solution

The fourth proportional to 540,286.80, 809,934.80 and 207,612.24 is: 311,228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,286.80 : 809,934.80 = 207,612.24 : x
  2. Step 2: Convert to fraction form
    540,286.80/809,934.80 = 207,612.24/x
  3. Step 3: Cross multiply
    540,286.80x = 809,934.80 × 207,612.24
  4. Step 4: Simplify right side
    540,286.80x = 168,152,378,081.95
  5. Step 5: Solve for x
    x = 168,152,378,081.95/540,286.80
  6. Step 6: Final answer
    x = 311,228.00

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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.