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Finding the Fourth Proportional to 275,878.38, 380,747.34 and 168,425.40

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Solution

The fourth proportional to 275,878.38, 380,747.34 and 168,425.40 is: 232,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,878.38 : 380,747.34 = 168,425.40 : x
  2. Step 2: Convert to fraction form
    275,878.38/380,747.34 = 168,425.40/x
  3. Step 3: Cross multiply
    275,878.38x = 380,747.34 × 168,425.40
  4. Step 4: Simplify right side
    275,878.38x = 64,127,523,038.44
  5. Step 5: Solve for x
    x = 64,127,523,038.44/275,878.38
  6. Step 6: Final answer
    x = 232,448.53

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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.