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Finding the Fourth Proportional to 269,392.50, 371,795.40 and 154,707.12

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Solution

The fourth proportional to 269,392.50, 371,795.40 and 154,707.12 is: 213,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,392.50 : 371,795.40 = 154,707.12 : x
  2. Step 2: Convert to fraction form
    269,392.50/371,795.40 = 154,707.12/x
  3. Step 3: Cross multiply
    269,392.50x = 371,795.40 × 154,707.12
  4. Step 4: Simplify right side
    269,392.50x = 57,519,395,563.25
  5. Step 5: Solve for x
    x = 57,519,395,563.25/269,392.50
  6. Step 6: Final answer
    x = 213,515.21

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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.