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Finding the Fourth Proportional to 315,150.73, 472,730.20 and 104,788.66

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Solution

The fourth proportional to 315,150.73, 472,730.20 and 104,788.66 is: 157,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,150.73 : 472,730.20 = 104,788.66 : x
  2. Step 2: Convert to fraction form
    315,150.73/472,730.20 = 104,788.66/x
  3. Step 3: Cross multiply
    315,150.73x = 472,730.20 × 104,788.66
  4. Step 4: Simplify right side
    315,150.73x = 49,536,764,199.53
  5. Step 5: Solve for x
    x = 49,536,764,199.53/315,150.73
  6. Step 6: Final answer
    x = 157,184.36

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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.