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Finding the Fourth Proportional to 303,210.80, 454,816.20 and 208,732.40

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Solution

The fourth proportional to 303,210.80, 454,816.20 and 208,732.40 is: 313,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,210.80 : 454,816.20 = 208,732.40 : x
  2. Step 2: Convert to fraction form
    303,210.80/454,816.20 = 208,732.40/x
  3. Step 3: Cross multiply
    303,210.80x = 454,816.20 × 208,732.40
  4. Step 4: Simplify right side
    303,210.80x = 94,934,876,984.88
  5. Step 5: Solve for x
    x = 94,934,876,984.88/303,210.80
  6. Step 6: Final answer
    x = 313,098.60

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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.