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Finding the Fourth Proportional to 188,304.54, 259,751.79 and 112,809.30

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Solution

The fourth proportional to 188,304.54, 259,751.79 and 112,809.30 is: 155,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,304.54 : 259,751.79 = 112,809.30 : x
  2. Step 2: Convert to fraction form
    188,304.54/259,751.79 = 112,809.30/x
  3. Step 3: Cross multiply
    188,304.54x = 259,751.79 × 112,809.30
  4. Step 4: Simplify right side
    188,304.54x = 29,302,417,603.65
  5. Step 5: Solve for x
    x = 29,302,417,603.65/188,304.54
  6. Step 6: Final answer
    x = 155,611.85

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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.