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Finding the Fourth Proportional to 221,999.30, 332,669.06 and 133,148.78

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Solution

The fourth proportional to 221,999.30, 332,669.06 and 133,148.78 is: 199,525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,999.30 : 332,669.06 = 133,148.78 : x
  2. Step 2: Convert to fraction form
    221,999.30/332,669.06 = 133,148.78/x
  3. Step 3: Cross multiply
    221,999.30x = 332,669.06 × 133,148.78
  4. Step 4: Simplify right side
    221,999.30x = 44,294,479,482.75
  5. Step 5: Solve for x
    x = 44,294,479,482.75/221,999.30
  6. Step 6: Final answer
    x = 199,525.31

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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.