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Finding the Fourth Proportional to 315,026.40, 472,539.60 and 226,452.90

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Solution

The fourth proportional to 315,026.40, 472,539.60 and 226,452.90 is: 339,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026.40 : 472,539.60 = 226,452.90 : x
  2. Step 2: Convert to fraction form
    315,026.40/472,539.60 = 226,452.90/x
  3. Step 3: Cross multiply
    315,026.40x = 472,539.60 × 226,452.90
  4. Step 4: Simplify right side
    315,026.40x = 107,007,962,784.84
  5. Step 5: Solve for x
    x = 107,007,962,784.84/315,026.40
  6. Step 6: Final answer
    x = 339,679.35

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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.