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Finding the Fourth Proportional to 608,750.80, 913,255.80 and 188,069.20

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Solution

The fourth proportional to 608,750.80, 913,255.80 and 188,069.20 is: 282,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,750.80 : 913,255.80 = 188,069.20 : x
  2. Step 2: Convert to fraction form
    608,750.80/913,255.80 = 188,069.20/x
  3. Step 3: Cross multiply
    608,750.80x = 913,255.80 × 188,069.20
  4. Step 4: Simplify right side
    608,750.80x = 171,755,287,701.36
  5. Step 5: Solve for x
    x = 171,755,287,701.36/608,750.80
  6. Step 6: Final answer
    x = 282,143.84

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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.