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Finding the Fourth Proportional to 404,390.40, 606,585.60 and 108,902.40

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Solution

The fourth proportional to 404,390.40, 606,585.60 and 108,902.40 is: 163,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,390.40 : 606,585.60 = 108,902.40 : x
  2. Step 2: Convert to fraction form
    404,390.40/606,585.60 = 108,902.40/x
  3. Step 3: Cross multiply
    404,390.40x = 606,585.60 × 108,902.40
  4. Step 4: Simplify right side
    404,390.40x = 66,058,627,645.44
  5. Step 5: Solve for x
    x = 66,058,627,645.44/404,390.40
  6. Step 6: Final answer
    x = 163,353.60

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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.