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Finding the Fourth Proportional to 611,315.20, 916,195.20 and 295,091.20

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Solution

The fourth proportional to 611,315.20, 916,195.20 and 295,091.20 is: 442,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,315.20 : 916,195.20 = 295,091.20 : x
  2. Step 2: Convert to fraction form
    611,315.20/916,195.20 = 295,091.20/x
  3. Step 3: Cross multiply
    611,315.20x = 916,195.20 × 295,091.20
  4. Step 4: Simplify right side
    611,315.20x = 270,361,141,002.24
  5. Step 5: Solve for x
    x = 270,361,141,002.24/611,315.20
  6. Step 6: Final answer
    x = 442,261.44

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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.