Home / 217,953.20-300,775.68-122,459.84

Finding the Fourth Proportional to 217,953.20, 300,775.68 and 122,459.84

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Solution

The fourth proportional to 217,953.20, 300,775.68 and 122,459.84 is: 168,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,953.20 : 300,775.68 = 122,459.84 : x
  2. Step 2: Convert to fraction form
    217,953.20/300,775.68 = 122,459.84/x
  3. Step 3: Cross multiply
    217,953.20x = 300,775.68 × 122,459.84
  4. Step 4: Simplify right side
    217,953.20x = 36,832,941,648.69
  5. Step 5: Solve for x
    x = 36,832,941,648.69/217,953.20
  6. Step 6: Final answer
    x = 168,994.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.