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Finding the Fourth Proportional to 101,000.52, 151,500.78 and 30,879.83

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Solution

The fourth proportional to 101,000.52, 151,500.78 and 30,879.83 is: 46,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,000.52 : 151,500.78 = 30,879.83 : x
  2. Step 2: Convert to fraction form
    101,000.52/151,500.78 = 30,879.83/x
  3. Step 3: Cross multiply
    101,000.52x = 151,500.78 × 30,879.83
  4. Step 4: Simplify right side
    101,000.52x = 4,678,318,710.02
  5. Step 5: Solve for x
    x = 4,678,318,710.02/101,000.52
  6. Step 6: Final answer
    x = 46,319.75

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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.