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Finding the Fourth Proportional to 268,408.80, 370,405.35 and 147,557.88

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Solution

The fourth proportional to 268,408.80, 370,405.35 and 147,557.88 is: 203,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,408.80 : 370,405.35 = 147,557.88 : x
  2. Step 2: Convert to fraction form
    268,408.80/370,405.35 = 147,557.88/x
  3. Step 3: Cross multiply
    268,408.80x = 370,405.35 × 147,557.88
  4. Step 4: Simplify right side
    268,408.80x = 54,656,228,186.66
  5. Step 5: Solve for x
    x = 54,656,228,186.66/268,408.80
  6. Step 6: Final answer
    x = 203,630.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.