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Finding the Fourth Proportional to 188,588.89, 283,069.23 and 138,528.46

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Solution

The fourth proportional to 188,588.89, 283,069.23 and 138,528.46 is: 207,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,588.89 : 283,069.23 = 138,528.46 : x
  2. Step 2: Convert to fraction form
    188,588.89/283,069.23 = 138,528.46/x
  3. Step 3: Cross multiply
    188,588.89x = 283,069.23 × 138,528.46
  4. Step 4: Simplify right side
    188,588.89x = 39,213,144,505.29
  5. Step 5: Solve for x
    x = 39,213,144,505.29/188,588.89
  6. Step 6: Final answer
    x = 207,929.24

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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.