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Finding the Fourth Proportional to 225,740.53, 311,520.56 and 123,770.30

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Solution

The fourth proportional to 225,740.53, 311,520.56 and 123,770.30 is: 170,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,740.53 : 311,520.56 = 123,770.30 : x
  2. Step 2: Convert to fraction form
    225,740.53/311,520.56 = 123,770.30/x
  3. Step 3: Cross multiply
    225,740.53x = 311,520.56 × 123,770.30
  4. Step 4: Simplify right side
    225,740.53x = 38,556,993,327.32
  5. Step 5: Solve for x
    x = 38,556,993,327.32/225,740.53
  6. Step 6: Final answer
    x = 170,802.26

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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.