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Finding the Fourth Proportional to 490,772.72, 736,159.36 and 153,839.60

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Solution

The fourth proportional to 490,772.72, 736,159.36 and 153,839.60 is: 230,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,772.72 : 736,159.36 = 153,839.60 : x
  2. Step 2: Convert to fraction form
    490,772.72/736,159.36 = 153,839.60/x
  3. Step 3: Cross multiply
    490,772.72x = 736,159.36 × 153,839.60
  4. Step 4: Simplify right side
    490,772.72x = 113,250,461,478.66
  5. Step 5: Solve for x
    x = 113,250,461,478.66/490,772.72
  6. Step 6: Final answer
    x = 230,759.49

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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.