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Finding the Fourth Proportional to 450,422.80, 621,522.18 and 269,096.32

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Solution

The fourth proportional to 450,422.80, 621,522.18 and 269,096.32 is: 371,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,422.80 : 621,522.18 = 269,096.32 : x
  2. Step 2: Convert to fraction form
    450,422.80/621,522.18 = 269,096.32/x
  3. Step 3: Cross multiply
    450,422.80x = 621,522.18 × 269,096.32
  4. Step 4: Simplify right side
    450,422.80x = 167,249,331,436.38
  5. Step 5: Solve for x
    x = 167,249,331,436.38/450,422.80
  6. Step 6: Final answer
    x = 371,316.31

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1.5x scale

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.