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Finding the Fourth Proportional to 275,476.35, 380,138.80 and 152,962.42

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Solution

The fourth proportional to 275,476.35, 380,138.80 and 152,962.42 is: 211,077.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,476.35 : 380,138.80 = 152,962.42 : x
  2. Step 2: Convert to fraction form
    275,476.35/380,138.80 = 152,962.42/x
  3. Step 3: Cross multiply
    275,476.35x = 380,138.80 × 152,962.42
  4. Step 4: Simplify right side
    275,476.35x = 58,146,950,783.90
  5. Step 5: Solve for x
    x = 58,146,950,783.90/275,476.35
  6. Step 6: Final answer
    x = 211,077.83

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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.