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Finding the Fourth Proportional to 221,550.04, 305,737.50 and 120,948.04

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Solution

The fourth proportional to 221,550.04, 305,737.50 and 120,948.04 is: 166,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,550.04 : 305,737.50 = 120,948.04 : x
  2. Step 2: Convert to fraction form
    221,550.04/305,737.50 = 120,948.04/x
  3. Step 3: Cross multiply
    221,550.04x = 305,737.50 × 120,948.04
  4. Step 4: Simplify right side
    221,550.04x = 36,978,351,379.50
  5. Step 5: Solve for x
    x = 36,978,351,379.50/221,550.04
  6. Step 6: Final answer
    x = 166,907.45

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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.