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Finding the Fourth Proportional to 253,562.08, 380,351.94 and 120,373.72

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Solution

The fourth proportional to 253,562.08, 380,351.94 and 120,373.72 is: 180,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,562.08 : 380,351.94 = 120,373.72 : x
  2. Step 2: Convert to fraction form
    253,562.08/380,351.94 = 120,373.72/x
  3. Step 3: Cross multiply
    253,562.08x = 380,351.94 × 120,373.72
  4. Step 4: Simplify right side
    253,562.08x = 45,784,377,927.02
  5. Step 5: Solve for x
    x = 45,784,377,927.02/253,562.08
  6. Step 6: Final answer
    x = 180,564.77

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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.