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Finding the Fourth Proportional to 216,379.02, 324,285.72 and 156,608.76

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Solution

The fourth proportional to 216,379.02, 324,285.72 and 156,608.76 is: 234,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,379.02 : 324,285.72 = 156,608.76 : x
  2. Step 2: Convert to fraction form
    216,379.02/324,285.72 = 156,608.76/x
  3. Step 3: Cross multiply
    216,379.02x = 324,285.72 × 156,608.76
  4. Step 4: Simplify right side
    216,379.02x = 50,785,984,494.91
  5. Step 5: Solve for x
    x = 50,785,984,494.91/216,379.02
  6. Step 6: Final answer
    x = 234,708.45

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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.