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Finding the Fourth Proportional to 225,079.40, 337,619.10 and 91,872.20

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Solution

The fourth proportional to 225,079.40, 337,619.10 and 91,872.20 is: 137,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,079.40 : 337,619.10 = 91,872.20 : x
  2. Step 2: Convert to fraction form
    225,079.40/337,619.10 = 91,872.20/x
  3. Step 3: Cross multiply
    225,079.40x = 337,619.10 × 91,872.20
  4. Step 4: Simplify right side
    225,079.40x = 31,017,809,479.02
  5. Step 5: Solve for x
    x = 31,017,809,479.02/225,079.40
  6. Step 6: Final answer
    x = 137,808.30

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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.