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Finding the Fourth Proportional to 608,812.80, 913,348.80 and 188,131.20

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Solution

The fourth proportional to 608,812.80, 913,348.80 and 188,131.20 is: 282,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,812.80 : 913,348.80 = 188,131.20 : x
  2. Step 2: Convert to fraction form
    608,812.80/913,348.80 = 188,131.20/x
  3. Step 3: Cross multiply
    608,812.80x = 913,348.80 × 188,131.20
  4. Step 4: Simplify right side
    608,812.80x = 171,829,405,762.56
  5. Step 5: Solve for x
    x = 171,829,405,762.56/608,812.80
  6. Step 6: Final answer
    x = 282,236.85

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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.