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Finding the Fourth Proportional to 290,016.84, 435,183.81 and 112,530.84

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Solution

The fourth proportional to 290,016.84, 435,183.81 and 112,530.84 is: 168,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,016.84 : 435,183.81 = 112,530.84 : x
  2. Step 2: Convert to fraction form
    290,016.84/435,183.81 = 112,530.84/x
  3. Step 3: Cross multiply
    290,016.84x = 435,183.81 × 112,530.84
  4. Step 4: Simplify right side
    290,016.84x = 48,971,599,693.70
  5. Step 5: Solve for x
    x = 48,971,599,693.70/290,016.84
  6. Step 6: Final answer
    x = 168,857.78

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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.