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Finding the Fourth Proportional to 490,304.20, 735,456.30 and 157,880.20

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Solution

The fourth proportional to 490,304.20, 735,456.30 and 157,880.20 is: 236,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,304.20 : 735,456.30 = 157,880.20 : x
  2. Step 2: Convert to fraction form
    490,304.20/735,456.30 = 157,880.20/x
  3. Step 3: Cross multiply
    490,304.20x = 735,456.30 × 157,880.20
  4. Step 4: Simplify right side
    490,304.20x = 116,113,987,735.26
  5. Step 5: Solve for x
    x = 116,113,987,735.26/490,304.20
  6. Step 6: Final answer
    x = 236,820.30

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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.