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Finding the Fourth Proportional to 472,734.90, 708,994.22 and 135,772.88

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Solution

The fourth proportional to 472,734.90, 708,994.22 and 135,772.88 is: 203,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,734.90 : 708,994.22 = 135,772.88 : x
  2. Step 2: Convert to fraction form
    472,734.90/708,994.22 = 135,772.88/x
  3. Step 3: Cross multiply
    472,734.90x = 708,994.22 × 135,772.88
  4. Step 4: Simplify right side
    472,734.90x = 96,262,182,928.92
  5. Step 5: Solve for x
    x = 96,262,182,928.92/472,734.90
  6. Step 6: Final answer
    x = 203,628.26

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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.