Home / 228,610.64-317,383.10-221,767.76

Finding the Fourth Proportional to 228,610.64, 317,383.10 and 221,767.76

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Solution

The fourth proportional to 228,610.64, 317,383.10 and 221,767.76 is: 307,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,610.64 : 317,383.10 = 221,767.76 : x
  2. Step 2: Convert to fraction form
    228,610.64/317,383.10 = 221,767.76/x
  3. Step 3: Cross multiply
    228,610.64x = 317,383.10 × 221,767.76
  4. Step 4: Simplify right side
    228,610.64x = 70,385,339,148.86
  5. Step 5: Solve for x
    x = 70,385,339,148.86/228,610.64
  6. Step 6: Final answer
    x = 307,883.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.