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Finding the Fourth Proportional to 219,871.90, 303,423.15 and 119,269.90

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Solution

The fourth proportional to 219,871.90, 303,423.15 and 119,269.90 is: 164,592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,871.90 : 303,423.15 = 119,269.90 : x
  2. Step 2: Convert to fraction form
    219,871.90/303,423.15 = 119,269.90/x
  3. Step 3: Cross multiply
    219,871.90x = 303,423.15 × 119,269.90
  4. Step 4: Simplify right side
    219,871.90x = 36,189,248,758.19
  5. Step 5: Solve for x
    x = 36,189,248,758.19/219,871.90
  6. Step 6: Final answer
    x = 164,592.42

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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.