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Finding the Fourth Proportional to 402,672.22, 603,994.41 and 103,155.73

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Solution

The fourth proportional to 402,672.22, 603,994.41 and 103,155.73 is: 154,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,672.22 : 603,994.41 = 103,155.73 : x
  2. Step 2: Convert to fraction form
    402,672.22/603,994.41 = 103,155.73/x
  3. Step 3: Cross multiply
    402,672.22x = 603,994.41 × 103,155.73
  4. Step 4: Simplify right side
    402,672.22x = 62,305,484,279.47
  5. Step 5: Solve for x
    x = 62,305,484,279.47/402,672.22
  6. Step 6: Final answer
    x = 154,730.03

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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.