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Finding the Fourth Proportional to 377,071.68, 520,471.08 and 216,033.96

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Solution

The fourth proportional to 377,071.68, 520,471.08 and 216,033.96 is: 298,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,071.68 : 520,471.08 = 216,033.96 : x
  2. Step 2: Convert to fraction form
    377,071.68/520,471.08 = 216,033.96/x
  3. Step 3: Cross multiply
    377,071.68x = 520,471.08 × 216,033.96
  4. Step 4: Simplify right side
    377,071.68x = 112,439,428,477.88
  5. Step 5: Solve for x
    x = 112,439,428,477.88/377,071.68
  6. Step 6: Final answer
    x = 298,191.13

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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.