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Finding the Fourth Proportional to 450,399.80, 621,490.52 and 269,073.35

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Solution

The fourth proportional to 450,399.80, 621,490.52 and 269,073.35 is: 371,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,399.80 : 621,490.52 = 269,073.35 : x
  2. Step 2: Convert to fraction form
    450,399.80/621,490.52 = 269,073.35/x
  3. Step 3: Cross multiply
    450,399.80x = 621,490.52 × 269,073.35
  4. Step 4: Simplify right side
    450,399.80x = 167,226,531,756.82
  5. Step 5: Solve for x
    x = 167,226,531,756.82/450,399.80
  6. Step 6: Final answer
    x = 371,284.65

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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.