Home / 269,012.09-371,222.28-148,129.79

Finding the Fourth Proportional to 269,012.09, 371,222.28 and 148,129.79

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Solution

The fourth proportional to 269,012.09, 371,222.28 and 148,129.79 is: 204,411.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,012.09 : 371,222.28 = 148,129.79 : x
  2. Step 2: Convert to fraction form
    269,012.09/371,222.28 = 148,129.79/x
  3. Step 3: Cross multiply
    269,012.09x = 371,222.28 × 148,129.79
  4. Step 4: Simplify right side
    269,012.09x = 54,989,076,523.61
  5. Step 5: Solve for x
    x = 54,989,076,523.61/269,012.09
  6. Step 6: Final answer
    x = 204,411.17

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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.