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Finding the Fourth Proportional to 218,050.92, 300,902.40 and 122,562.84

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Solution

The fourth proportional to 218,050.92, 300,902.40 and 122,562.84 is: 169,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,050.92 : 300,902.40 = 122,562.84 : x
  2. Step 2: Convert to fraction form
    218,050.92/300,902.40 = 122,562.84/x
  3. Step 3: Cross multiply
    218,050.92x = 300,902.40 × 122,562.84
  4. Step 4: Simplify right side
    218,050.92x = 36,879,452,706.82
  5. Step 5: Solve for x
    x = 36,879,452,706.82/218,050.92
  6. Step 6: Final answer
    x = 169,132.30

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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.