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Finding the Fourth Proportional to 220,295.04, 330,355.08 and 79,977.12

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Solution

The fourth proportional to 220,295.04, 330,355.08 and 79,977.12 is: 119,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,295.04 : 330,355.08 = 79,977.12 : x
  2. Step 2: Convert to fraction form
    220,295.04/330,355.08 = 79,977.12/x
  3. Step 3: Cross multiply
    220,295.04x = 330,355.08 × 79,977.12
  4. Step 4: Simplify right side
    220,295.04x = 26,420,847,875.77
  5. Step 5: Solve for x
    x = 26,420,847,875.77/220,295.04
  6. Step 6: Final answer
    x = 119,933.92

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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.