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Finding the Fourth Proportional to 377,069.67, 520,468.32 and 216,031.95

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Solution

The fourth proportional to 377,069.67, 520,468.32 and 216,031.95 is: 298,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,069.67 : 520,468.32 = 216,031.95 : x
  2. Step 2: Convert to fraction form
    377,069.67/520,468.32 = 216,031.95/x
  3. Step 3: Cross multiply
    377,069.67x = 520,468.32 × 216,031.95
  4. Step 4: Simplify right side
    377,069.67x = 112,437,786,082.82
  5. Step 5: Solve for x
    x = 112,437,786,082.82/377,069.67
  6. Step 6: Final answer
    x = 298,188.36

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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.