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Finding the Fourth Proportional to 305,280.65, 457,805.94 and 127,799.93

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Solution

The fourth proportional to 305,280.65, 457,805.94 and 127,799.93 is: 191,651.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,280.65 : 457,805.94 = 127,799.93 : x
  2. Step 2: Convert to fraction form
    305,280.65/457,805.94 = 127,799.93/x
  3. Step 3: Cross multiply
    305,280.65x = 457,805.94 × 127,799.93
  4. Step 4: Simplify right side
    305,280.65x = 58,507,564,796.55
  5. Step 5: Solve for x
    x = 58,507,564,796.55/305,280.65
  6. Step 6: Final answer
    x = 191,651.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.