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Finding the Fourth Proportional to 275,646.96, 380,434.44 and 168,279.60

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Solution

The fourth proportional to 275,646.96, 380,434.44 and 168,279.60 is: 232,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,646.96 : 380,434.44 = 168,279.60 : x
  2. Step 2: Convert to fraction form
    275,646.96/380,434.44 = 168,279.60/x
  3. Step 3: Cross multiply
    275,646.96x = 380,434.44 × 168,279.60
  4. Step 4: Simplify right side
    275,646.96x = 64,019,355,389.42
  5. Step 5: Solve for x
    x = 64,019,355,389.42/275,646.96
  6. Step 6: Final answer
    x = 232,251.27

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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.