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Finding the Fourth Proportional to 275,618.64, 380,412.96 and 168,165.60

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Solution

The fourth proportional to 275,618.64, 380,412.96 and 168,165.60 is: 232,104.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,618.64 : 380,412.96 = 168,165.60 : x
  2. Step 2: Convert to fraction form
    275,618.64/380,412.96 = 168,165.60/x
  3. Step 3: Cross multiply
    275,618.64x = 380,412.96 × 168,165.60
  4. Step 4: Simplify right side
    275,618.64x = 63,972,373,666.18
  5. Step 5: Solve for x
    x = 63,972,373,666.18/275,618.64
  6. Step 6: Final answer
    x = 232,104.67

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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.