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Finding the Fourth Proportional to 289,235.00, 433,570.79 and 120,803.40

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Solution

The fourth proportional to 289,235.00, 433,570.79 and 120,803.40 is: 181,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,235.00 : 433,570.79 = 120,803.40 : x
  2. Step 2: Convert to fraction form
    289,235.00/433,570.79 = 120,803.40/x
  3. Step 3: Cross multiply
    289,235.00x = 433,570.79 × 120,803.40
  4. Step 4: Simplify right side
    289,235.00x = 52,376,825,874.69
  5. Step 5: Solve for x
    x = 52,376,825,874.69/289,235.00
  6. Step 6: Final answer
    x = 181,087.44

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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.