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Finding the Fourth Proportional to 268,840.86, 370,956.99 and 154,098.39

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Solution

The fourth proportional to 268,840.86, 370,956.99 and 154,098.39 is: 212,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,840.86 : 370,956.99 = 154,098.39 : x
  2. Step 2: Convert to fraction form
    268,840.86/370,956.99 = 154,098.39/x
  3. Step 3: Cross multiply
    268,840.86x = 370,956.99 × 154,098.39
  4. Step 4: Simplify right side
    268,840.86x = 57,163,874,918.25
  5. Step 5: Solve for x
    x = 57,163,874,918.25/268,840.86
  6. Step 6: Final answer
    x = 212,630.90

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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.