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Finding the Fourth Proportional to 188,104.28, 282,150.95 and 54,987.66

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Solution

The fourth proportional to 188,104.28, 282,150.95 and 54,987.66 is: 82,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,104.28 : 282,150.95 = 54,987.66 : x
  2. Step 2: Convert to fraction form
    188,104.28/282,150.95 = 54,987.66/x
  3. Step 3: Cross multiply
    188,104.28x = 282,150.95 × 54,987.66
  4. Step 4: Simplify right side
    188,104.28x = 15,514,821,075.19
  5. Step 5: Solve for x
    x = 15,514,821,075.19/188,104.28
  6. Step 6: Final answer
    x = 82,479.90

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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.