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Finding the Fourth Proportional to 203,277.15, 304,964.18 and 70,158.57

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Solution

The fourth proportional to 203,277.15, 304,964.18 and 70,158.57 is: 105,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,277.15 : 304,964.18 = 70,158.57 : x
  2. Step 2: Convert to fraction form
    203,277.15/304,964.18 = 70,158.57/x
  3. Step 3: Cross multiply
    203,277.15x = 304,964.18 × 70,158.57
  4. Step 4: Simplify right side
    203,277.15x = 21,395,850,419.23
  5. Step 5: Solve for x
    x = 21,395,850,419.23/203,277.15
  6. Step 6: Final answer
    x = 105,254.58

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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.