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Finding the Fourth Proportional to 608,836.80, 913,384.80 and 188,155.20

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Solution

The fourth proportional to 608,836.80, 913,384.80 and 188,155.20 is: 282,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,836.80 : 913,384.80 = 188,155.20 : x
  2. Step 2: Convert to fraction form
    608,836.80/913,384.80 = 188,155.20/x
  3. Step 3: Cross multiply
    608,836.80x = 913,384.80 × 188,155.20
  4. Step 4: Simplify right side
    608,836.80x = 171,858,099,720.96
  5. Step 5: Solve for x
    x = 171,858,099,720.96/608,836.80
  6. Step 6: Final answer
    x = 282,272.85

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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.