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Finding the Fourth Proportional to 230,216.45, 345,378.83 and 72,444.83

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Solution

The fourth proportional to 230,216.45, 345,378.83 and 72,444.83 is: 108,684.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,216.45 : 345,378.83 = 72,444.83 : x
  2. Step 2: Convert to fraction form
    230,216.45/345,378.83 = 72,444.83/x
  3. Step 3: Cross multiply
    230,216.45x = 345,378.83 × 72,444.83
  4. Step 4: Simplify right side
    230,216.45x = 25,020,908,535.83
  5. Step 5: Solve for x
    x = 25,020,908,535.83/230,216.45
  6. Step 6: Final answer
    x = 108,684.28

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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.