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Finding the Fourth Proportional to 663,314.40, 994,971.60 and 164,678.40

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Solution

The fourth proportional to 663,314.40, 994,971.60 and 164,678.40 is: 247,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,314.40 : 994,971.60 = 164,678.40 : x
  2. Step 2: Convert to fraction form
    663,314.40/994,971.60 = 164,678.40/x
  3. Step 3: Cross multiply
    663,314.40x = 994,971.60 × 164,678.40
  4. Step 4: Simplify right side
    663,314.40x = 163,850,331,133.44
  5. Step 5: Solve for x
    x = 163,850,331,133.44/663,314.40
  6. Step 6: Final answer
    x = 247,017.60

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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.