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Finding the Fourth Proportional to 553,895.42, 830,843.14 and 133,171.30

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Solution

The fourth proportional to 553,895.42, 830,843.14 and 133,171.30 is: 199,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,895.42 : 830,843.14 = 133,171.30 : x
  2. Step 2: Convert to fraction form
    553,895.42/830,843.14 = 133,171.30/x
  3. Step 3: Cross multiply
    553,895.42x = 830,843.14 × 133,171.30
  4. Step 4: Simplify right side
    553,895.42x = 110,644,461,049.88
  5. Step 5: Solve for x
    x = 110,644,461,049.88/553,895.42
  6. Step 6: Final answer
    x = 199,756.95

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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.