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Finding the Fourth Proportional to 239,380.80, 358,552.80 and 208,276.80

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Solution

The fourth proportional to 239,380.80, 358,552.80 and 208,276.80 is: 311,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,380.80 : 358,552.80 = 208,276.80 : x
  2. Step 2: Convert to fraction form
    239,380.80/358,552.80 = 208,276.80/x
  3. Step 3: Cross multiply
    239,380.80x = 358,552.80 × 208,276.80
  4. Step 4: Simplify right side
    239,380.80x = 74,678,229,815.04
  5. Step 5: Solve for x
    x = 74,678,229,815.04/239,380.80
  6. Step 6: Final answer
    x = 311,964.16

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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.