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Finding the Fourth Proportional to 462,569.55, 638,370.35 and 281,251.45

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Solution

The fourth proportional to 462,569.55, 638,370.35 and 281,251.45 is: 388,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,569.55 : 638,370.35 = 281,251.45 : x
  2. Step 2: Convert to fraction form
    462,569.55/638,370.35 = 281,251.45/x
  3. Step 3: Cross multiply
    462,569.55x = 638,370.35 × 281,251.45
  4. Step 4: Simplify right side
    462,569.55x = 179,542,586,574.51
  5. Step 5: Solve for x
    x = 179,542,586,574.51/462,569.55
  6. Step 6: Final answer
    x = 388,141.82

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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.