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Finding the Fourth Proportional to 221,678.78, 332,523.23 and 79,533.50

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Solution

The fourth proportional to 221,678.78, 332,523.23 and 79,533.50 is: 119,302.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,678.78 : 332,523.23 = 79,533.50 : x
  2. Step 2: Convert to fraction form
    221,678.78/332,523.23 = 79,533.50/x
  3. Step 3: Cross multiply
    221,678.78x = 332,523.23 × 79,533.50
  4. Step 4: Simplify right side
    221,678.78x = 26,446,734,252.92
  5. Step 5: Solve for x
    x = 26,446,734,252.92/221,678.78
  6. Step 6: Final answer
    x = 119,302.06

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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.