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Finding the Fourth Proportional to 608,909.80, 913,364.70 and 188,314.60

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Solution

The fourth proportional to 608,909.80, 913,364.70 and 188,314.60 is: 282,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,909.80 : 913,364.70 = 188,314.60 : x
  2. Step 2: Convert to fraction form
    608,909.80/913,364.70 = 188,314.60/x
  3. Step 3: Cross multiply
    608,909.80x = 913,364.70 × 188,314.60
  4. Step 4: Simplify right side
    608,909.80x = 171,999,908,134.62
  5. Step 5: Solve for x
    x = 171,999,908,134.62/608,909.80
  6. Step 6: Final answer
    x = 282,471.90

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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.