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Finding the Fourth Proportional to 377,310.76, 520,762.78 and 216,273.66

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Solution

The fourth proportional to 377,310.76, 520,762.78 and 216,273.66 is: 298,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,310.76 : 520,762.78 = 216,273.66 : x
  2. Step 2: Convert to fraction form
    377,310.76/520,762.78 = 216,273.66/x
  3. Step 3: Cross multiply
    377,310.76x = 520,762.78 × 216,273.66
  4. Step 4: Simplify right side
    377,310.76x = 112,627,272,422.38
  5. Step 5: Solve for x
    x = 112,627,272,422.38/377,310.76
  6. Step 6: Final answer
    x = 298,500.03

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1.5x scale

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.