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Finding the Fourth Proportional to 377,326.52, 520,784.52 and 216,289.40

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Solution

The fourth proportional to 377,326.52, 520,784.52 and 216,289.40 is: 298,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,326.52 : 520,784.52 = 216,289.40 : x
  2. Step 2: Convert to fraction form
    377,326.52/520,784.52 = 216,289.40/x
  3. Step 3: Cross multiply
    377,326.52x = 520,784.52 × 216,289.40
  4. Step 4: Simplify right side
    377,326.52x = 112,640,171,360.09
  5. Step 5: Solve for x
    x = 112,640,171,360.09/377,326.52
  6. Step 6: Final answer
    x = 298,521.75

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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.