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Finding the Fourth Proportional to 254,612.78, 382,002.08 and 121,475.79

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Solution

The fourth proportional to 254,612.78, 382,002.08 and 121,475.79 is: 182,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,612.78 : 382,002.08 = 121,475.79 : x
  2. Step 2: Convert to fraction form
    254,612.78/382,002.08 = 121,475.79/x
  3. Step 3: Cross multiply
    254,612.78x = 382,002.08 × 121,475.79
  4. Step 4: Simplify right side
    254,612.78x = 46,404,003,842.26
  5. Step 5: Solve for x
    x = 46,404,003,842.26/254,612.78
  6. Step 6: Final answer
    x = 182,253.24

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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.