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Finding the Fourth Proportional to 315,277.60, 472,801.20 and 104,922.40

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Solution

The fourth proportional to 315,277.60, 472,801.20 and 104,922.40 is: 157,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,277.60 : 472,801.20 = 104,922.40 : x
  2. Step 2: Convert to fraction form
    315,277.60/472,801.20 = 104,922.40/x
  3. Step 3: Cross multiply
    315,277.60x = 472,801.20 × 104,922.40
  4. Step 4: Simplify right side
    315,277.60x = 49,607,436,626.88
  5. Step 5: Solve for x
    x = 49,607,436,626.88/315,277.60
  6. Step 6: Final answer
    x = 157,345.26

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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.