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Finding the Fourth Proportional to 608,830.40, 913,245.60 and 188,148.80

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Solution

The fourth proportional to 608,830.40, 913,245.60 and 188,148.80 is: 282,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,830.40 : 913,245.60 = 188,148.80 : x
  2. Step 2: Convert to fraction form
    608,830.40/913,245.60 = 188,148.80/x
  3. Step 3: Cross multiply
    608,830.40x = 913,245.60 × 188,148.80
  4. Step 4: Simplify right side
    608,830.40x = 171,826,063,745.28
  5. Step 5: Solve for x
    x = 171,826,063,745.28/608,830.40
  6. Step 6: Final answer
    x = 282,223.20

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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.