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Finding the Fourth Proportional to 377,440.95, 520,882.85 and 216,327.09

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Solution

The fourth proportional to 377,440.95, 520,882.85 and 216,327.09 is: 298,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,440.95 : 520,882.85 = 216,327.09 : x
  2. Step 2: Convert to fraction form
    377,440.95/520,882.85 = 216,327.09/x
  3. Step 3: Cross multiply
    377,440.95x = 520,882.85 × 216,327.09
  4. Step 4: Simplify right side
    377,440.95x = 112,681,070,089.77
  5. Step 5: Solve for x
    x = 112,681,070,089.77/377,440.95
  6. Step 6: Final answer
    x = 298,539.60

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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.