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Finding the Fourth Proportional to 377,385.56, 520,866.52 and 216,348.74

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Solution

The fourth proportional to 377,385.56, 520,866.52 and 216,348.74 is: 298,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,385.56 : 520,866.52 = 216,348.74 : x
  2. Step 2: Convert to fraction form
    377,385.56/520,866.52 = 216,348.74/x
  3. Step 3: Cross multiply
    377,385.56x = 520,866.52 × 216,348.74
  4. Step 4: Simplify right side
    377,385.56x = 112,688,815,310.19
  5. Step 5: Solve for x
    x = 112,688,815,310.19/377,385.56
  6. Step 6: Final answer
    x = 298,603.94

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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.