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Finding the Fourth Proportional to 608,979.60, 913,469.40 and 159,699.60

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Solution

The fourth proportional to 608,979.60, 913,469.40 and 159,699.60 is: 239,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,979.60 : 913,469.40 = 159,699.60 : x
  2. Step 2: Convert to fraction form
    608,979.60/913,469.40 = 159,699.60/x
  3. Step 3: Cross multiply
    608,979.60x = 913,469.40 × 159,699.60
  4. Step 4: Simplify right side
    608,979.60x = 145,880,697,792.24
  5. Step 5: Solve for x
    x = 145,880,697,792.24/608,979.60
  6. Step 6: Final answer
    x = 239,549.40

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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.