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Finding the Fourth Proportional to 275,740.59, 380,531.25 and 153,238.13

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Solution

The fourth proportional to 275,740.59, 380,531.25 and 153,238.13 is: 211,473.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,740.59 : 380,531.25 = 153,238.13 : x
  2. Step 2: Convert to fraction form
    275,740.59/380,531.25 = 153,238.13/x
  3. Step 3: Cross multiply
    275,740.59x = 380,531.25 × 153,238.13
  4. Step 4: Simplify right side
    275,740.59x = 58,311,897,156.56
  5. Step 5: Solve for x
    x = 58,311,897,156.56/275,740.59
  6. Step 6: Final answer
    x = 211,473.75

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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.