Home / 215,880.20-323,820.30-122,568.20

Finding the Fourth Proportional to 215,880.20, 323,820.30 and 122,568.20

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Solution

The fourth proportional to 215,880.20, 323,820.30 and 122,568.20 is: 183,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,880.20 : 323,820.30 = 122,568.20 : x
  2. Step 2: Convert to fraction form
    215,880.20/323,820.30 = 122,568.20/x
  3. Step 3: Cross multiply
    215,880.20x = 323,820.30 × 122,568.20
  4. Step 4: Simplify right side
    215,880.20x = 39,690,071,294.46
  5. Step 5: Solve for x
    x = 39,690,071,294.46/215,880.20
  6. Step 6: Final answer
    x = 183,852.30

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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.