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Finding the Fourth Proportional to 188,482.41, 260,143.56 and 111,986.79

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Solution

The fourth proportional to 188,482.41, 260,143.56 and 111,986.79 is: 154,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,482.41 : 260,143.56 = 111,986.79 : x
  2. Step 2: Convert to fraction form
    188,482.41/260,143.56 = 111,986.79/x
  3. Step 3: Cross multiply
    188,482.41x = 260,143.56 × 111,986.79
  4. Step 4: Simplify right side
    188,482.41x = 29,132,642,223.57
  5. Step 5: Solve for x
    x = 29,132,642,223.57/188,482.41
  6. Step 6: Final answer
    x = 154,564.25

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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.