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Finding the Fourth Proportional to 498,242, 687,588.56 and 271,902.08

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Solution

The fourth proportional to 498,242, 687,588.56 and 271,902.08 is: 375,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,242 : 687,588.56 = 271,902.08 : x
  2. Step 2: Convert to fraction form
    498,242/687,588.56 = 271,902.08/x
  3. Step 3: Cross multiply
    498,242x = 687,588.56 × 271,902.08
  4. Step 4: Simplify right side
    498,242x = 186,956,759,648.21
  5. Step 5: Solve for x
    x = 186,956,759,648.21/498,242
  6. Step 6: Final answer
    x = 375,232.84

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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.