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Finding the Fourth Proportional to 268,121.53, 369,870.84 and 171,223.53

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Solution

The fourth proportional to 268,121.53, 369,870.84 and 171,223.53 is: 236,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,121.53 : 369,870.84 = 171,223.53 : x
  2. Step 2: Convert to fraction form
    268,121.53/369,870.84 = 171,223.53/x
  3. Step 3: Cross multiply
    268,121.53x = 369,870.84 × 171,223.53
  4. Step 4: Simplify right side
    268,121.53x = 63,330,590,868.87
  5. Step 5: Solve for x
    x = 63,330,590,868.87/268,121.53
  6. Step 6: Final answer
    x = 236,201.06

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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.