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Finding the Fourth Proportional to 608,945.60, 913,418.40 and 188,220.80

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Solution

The fourth proportional to 608,945.60, 913,418.40 and 188,220.80 is: 282,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,945.60 : 913,418.40 = 188,220.80 : x
  2. Step 2: Convert to fraction form
    608,945.60/913,418.40 = 188,220.80/x
  3. Step 3: Cross multiply
    608,945.60x = 913,418.40 × 188,220.80
  4. Step 4: Simplify right side
    608,945.60x = 171,924,341,982.72
  5. Step 5: Solve for x
    x = 171,924,341,982.72/608,945.60
  6. Step 6: Final answer
    x = 282,331.20

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Similar ratio
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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.