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Finding the Fourth Proportional to 311,935.94, 430,472.89 and 168,695.98

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Solution

The fourth proportional to 311,935.94, 430,472.89 and 168,695.98 is: 232,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,935.94 : 430,472.89 = 168,695.98 : x
  2. Step 2: Convert to fraction form
    311,935.94/430,472.89 = 168,695.98/x
  3. Step 3: Cross multiply
    311,935.94x = 430,472.89 × 168,695.98
  4. Step 4: Simplify right side
    311,935.94x = 72,619,046,041.98
  5. Step 5: Solve for x
    x = 72,619,046,041.98/311,935.94
  6. Step 6: Final answer
    x = 232,801.15

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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.