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Finding the Fourth Proportional to 377,074.17, 520,474.53 and 216,036.45

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Solution

The fourth proportional to 377,074.17, 520,474.53 and 216,036.45 is: 298,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,074.17 : 520,474.53 = 216,036.45 : x
  2. Step 2: Convert to fraction form
    377,074.17/520,474.53 = 216,036.45/x
  3. Step 3: Cross multiply
    377,074.17x = 520,474.53 × 216,036.45
  4. Step 4: Simplify right side
    377,074.17x = 112,441,469,776.62
  5. Step 5: Solve for x
    x = 112,441,469,776.62/377,074.17
  6. Step 6: Final answer
    x = 298,194.57

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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.