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Finding the Fourth Proportional to 377,084.54, 520,378.62 and 207,329.60

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Solution

The fourth proportional to 377,084.54, 520,378.62 and 207,329.60 is: 286,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,084.54 : 520,378.62 = 207,329.60 : x
  2. Step 2: Convert to fraction form
    377,084.54/520,378.62 = 207,329.60/x
  3. Step 3: Cross multiply
    377,084.54x = 520,378.62 × 207,329.60
  4. Step 4: Simplify right side
    377,084.54x = 107,889,891,133.15
  5. Step 5: Solve for x
    x = 107,889,891,133.15/377,084.54
  6. Step 6: Final answer
    x = 286,115.92

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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.