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Finding the Fourth Proportional to 188,386.82, 259,830.59 and 130,340.14

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Solution

The fourth proportional to 188,386.82, 259,830.59 and 130,340.14 is: 179,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,386.82 : 259,830.59 = 130,340.14 : x
  2. Step 2: Convert to fraction form
    188,386.82/259,830.59 = 130,340.14/x
  3. Step 3: Cross multiply
    188,386.82x = 259,830.59 × 130,340.14
  4. Step 4: Simplify right side
    188,386.82x = 33,866,354,175.61
  5. Step 5: Solve for x
    x = 33,866,354,175.61/188,386.82
  6. Step 6: Final answer
    x = 179,770.29

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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.