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Finding the Fourth Proportional to 188,116.83, 282,220.40 and 69,789.19

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Solution

The fourth proportional to 188,116.83, 282,220.40 and 69,789.19 is: 104,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,116.83 : 282,220.40 = 69,789.19 : x
  2. Step 2: Convert to fraction form
    188,116.83/282,220.40 = 69,789.19/x
  3. Step 3: Cross multiply
    188,116.83x = 282,220.40 × 69,789.19
  4. Step 4: Simplify right side
    188,116.83x = 19,695,933,117.48
  5. Step 5: Solve for x
    x = 19,695,933,117.48/188,116.83
  6. Step 6: Final answer
    x = 104,700.54

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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.