Home / 302,456.20-453,684.30-209,144.20

Finding the Fourth Proportional to 302,456.20, 453,684.30 and 209,144.20

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Solution

The fourth proportional to 302,456.20, 453,684.30 and 209,144.20 is: 313,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.20 : 453,684.30 = 209,144.20 : x
  2. Step 2: Convert to fraction form
    302,456.20/453,684.30 = 209,144.20/x
  3. Step 3: Cross multiply
    302,456.20x = 453,684.30 × 209,144.20
  4. Step 4: Simplify right side
    302,456.20x = 94,885,439,976.06
  5. Step 5: Solve for x
    x = 94,885,439,976.06/302,456.20
  6. Step 6: Final answer
    x = 313,716.30

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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.