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Finding the Fourth Proportional to 451,645.40, 677,468.10 and 185,317.40

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Solution

The fourth proportional to 451,645.40, 677,468.10 and 185,317.40 is: 277,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,645.40 : 677,468.10 = 185,317.40 : x
  2. Step 2: Convert to fraction form
    451,645.40/677,468.10 = 185,317.40/x
  3. Step 3: Cross multiply
    451,645.40x = 677,468.10 × 185,317.40
  4. Step 4: Simplify right side
    451,645.40x = 125,546,626,874.94
  5. Step 5: Solve for x
    x = 125,546,626,874.94/451,645.40
  6. Step 6: Final answer
    x = 277,976.10

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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.