Home / 215,844.60-323,766.90-145,342.20

Finding the Fourth Proportional to 215,844.60, 323,766.90 and 145,342.20

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Solution

The fourth proportional to 215,844.60, 323,766.90 and 145,342.20 is: 218,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,844.60 : 323,766.90 = 145,342.20 : x
  2. Step 2: Convert to fraction form
    215,844.60/323,766.90 = 145,342.20/x
  3. Step 3: Cross multiply
    215,844.60x = 323,766.90 × 145,342.20
  4. Step 4: Simplify right side
    215,844.60x = 47,056,993,533.18
  5. Step 5: Solve for x
    x = 47,056,993,533.18/215,844.60
  6. Step 6: Final answer
    x = 218,013.30

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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.