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Finding the Fourth Proportional to 486,668.25, 730,002.38 and 154,244.25

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Solution

The fourth proportional to 486,668.25, 730,002.38 and 154,244.25 is: 231,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,668.25 : 730,002.38 = 154,244.25 : x
  2. Step 2: Convert to fraction form
    486,668.25/730,002.38 = 154,244.25/x
  3. Step 3: Cross multiply
    486,668.25x = 730,002.38 × 154,244.25
  4. Step 4: Simplify right side
    486,668.25x = 112,598,668,830.09
  5. Step 5: Solve for x
    x = 112,598,668,830.09/486,668.25
  6. Step 6: Final answer
    x = 231,366.38

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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.