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Finding the Fourth Proportional to 180,381.84, 248,891.55 and 99,794.31

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Solution

The fourth proportional to 180,381.84, 248,891.55 and 99,794.31 is: 137,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,381.84 : 248,891.55 = 99,794.31 : x
  2. Step 2: Convert to fraction form
    180,381.84/248,891.55 = 99,794.31/x
  3. Step 3: Cross multiply
    180,381.84x = 248,891.55 × 99,794.31
  4. Step 4: Simplify right side
    180,381.84x = 24,837,960,497.08
  5. Step 5: Solve for x
    x = 24,837,960,497.08/180,381.84
  6. Step 6: Final answer
    x = 137,696.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.