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Finding the Fourth Proportional to 377,765.84, 521,318.76 and 216,626.96

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Solution

The fourth proportional to 377,765.84, 521,318.76 and 216,626.96 is: 298,946.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,765.84 : 521,318.76 = 216,626.96 : x
  2. Step 2: Convert to fraction form
    377,765.84/521,318.76 = 216,626.96/x
  3. Step 3: Cross multiply
    377,765.84x = 521,318.76 × 216,626.96
  4. Step 4: Simplify right side
    377,765.84x = 112,931,698,169.77
  5. Step 5: Solve for x
    x = 112,931,698,169.77/377,765.84
  6. Step 6: Final answer
    x = 298,946.29

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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.