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Finding the Fourth Proportional to 268,235.69, 402,382.69 and 99,736.25

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Solution

The fourth proportional to 268,235.69, 402,382.69 and 99,736.25 is: 149,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,235.69 : 402,382.69 = 99,736.25 : x
  2. Step 2: Convert to fraction form
    268,235.69/402,382.69 = 99,736.25/x
  3. Step 3: Cross multiply
    268,235.69x = 402,382.69 × 99,736.25
  4. Step 4: Simplify right side
    268,235.69x = 40,132,138,304.26
  5. Step 5: Solve for x
    x = 40,132,138,304.26/268,235.69
  6. Step 6: Final answer
    x = 149,615.21

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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.