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Finding the Fourth Proportional to 450,328.55, 621,351.66 and 269,004.98

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Solution

The fourth proportional to 450,328.55, 621,351.66 and 269,004.98 is: 371,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,328.55 : 621,351.66 = 269,004.98 : x
  2. Step 2: Convert to fraction form
    450,328.55/621,351.66 = 269,004.98/x
  3. Step 3: Cross multiply
    450,328.55x = 621,351.66 × 269,004.98
  4. Step 4: Simplify right side
    450,328.55x = 167,146,691,920.26
  5. Step 5: Solve for x
    x = 167,146,691,920.26/450,328.55
  6. Step 6: Final answer
    x = 371,166.10

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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.