Home / 215,415.60-323,258.12-82,307.20

Finding the Fourth Proportional to 215,415.60, 323,258.12 and 82,307.20

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Solution

The fourth proportional to 215,415.60, 323,258.12 and 82,307.20 is: 123,512.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,415.60 : 323,258.12 = 82,307.20 : x
  2. Step 2: Convert to fraction form
    215,415.60/323,258.12 = 82,307.20/x
  3. Step 3: Cross multiply
    215,415.60x = 323,258.12 × 82,307.20
  4. Step 4: Simplify right side
    215,415.60x = 26,606,470,734.46
  5. Step 5: Solve for x
    x = 26,606,470,734.46/215,415.60
  6. Step 6: Final answer
    x = 123,512.27

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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.