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Finding the Fourth Proportional to 454,987.96, 627,881.50 and 251,051.56

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Solution

The fourth proportional to 454,987.96, 627,881.50 and 251,051.56 is: 346,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,987.96 : 627,881.50 = 251,051.56 : x
  2. Step 2: Convert to fraction form
    454,987.96/627,881.50 = 251,051.56/x
  3. Step 3: Cross multiply
    454,987.96x = 627,881.50 × 251,051.56
  4. Step 4: Simplify right side
    454,987.96x = 157,630,630,070.14
  5. Step 5: Solve for x
    x = 157,630,630,070.14/454,987.96
  6. Step 6: Final answer
    x = 346,450.11

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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.