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Finding the Fourth Proportional to 275,719.40, 413,655.90 and 135,482.60

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Solution

The fourth proportional to 275,719.40, 413,655.90 and 135,482.60 is: 203,261.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,719.40 : 413,655.90 = 135,482.60 : x
  2. Step 2: Convert to fraction form
    275,719.40/413,655.90 = 135,482.60/x
  3. Step 3: Cross multiply
    275,719.40x = 413,655.90 × 135,482.60
  4. Step 4: Simplify right side
    275,719.40x = 56,043,176,837.34
  5. Step 5: Solve for x
    x = 56,043,176,837.34/275,719.40
  6. Step 6: Final answer
    x = 203,261.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.