Home / 300,445.80-450,727.02-90,066.12

Finding the Fourth Proportional to 300,445.80, 450,727.02 and 90,066.12

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Solution

The fourth proportional to 300,445.80, 450,727.02 and 90,066.12 is: 135,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,445.80 : 450,727.02 = 90,066.12 : x
  2. Step 2: Convert to fraction form
    300,445.80/450,727.02 = 90,066.12/x
  3. Step 3: Cross multiply
    300,445.80x = 450,727.02 × 90,066.12
  4. Step 4: Simplify right side
    300,445.80x = 40,595,233,870.56
  5. Step 5: Solve for x
    x = 40,595,233,870.56/300,445.80
  6. Step 6: Final answer
    x = 135,116.66

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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.