Home / 220,808.64-331,218.40-80,567.24

Finding the Fourth Proportional to 220,808.64, 331,218.40 and 80,567.24

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Solution

The fourth proportional to 220,808.64, 331,218.40 and 80,567.24 is: 120,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,808.64 : 331,218.40 = 80,567.24 : x
  2. Step 2: Convert to fraction form
    220,808.64/331,218.40 = 80,567.24/x
  3. Step 3: Cross multiply
    220,808.64x = 331,218.40 × 80,567.24
  4. Step 4: Simplify right side
    220,808.64x = 26,685,352,325.22
  5. Step 5: Solve for x
    x = 26,685,352,325.22/220,808.64
  6. Step 6: Final answer
    x = 120,852.84

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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.