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Finding the Fourth Proportional to 220,703.04, 331,103.52 and 80,461.28

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Solution

The fourth proportional to 220,703.04, 331,103.52 and 80,461.28 is: 120,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,703.04 : 331,103.52 = 80,461.28 : x
  2. Step 2: Convert to fraction form
    220,703.04/331,103.52 = 80,461.28/x
  3. Step 3: Cross multiply
    220,703.04x = 331,103.52 × 80,461.28
  4. Step 4: Simplify right side
    220,703.04x = 26,641,013,031.71
  5. Step 5: Solve for x
    x = 26,641,013,031.71/220,703.04
  6. Step 6: Final answer
    x = 120,709.77

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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.