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Finding the Fourth Proportional to 254,253.25, 350,869.21 and 139,532.55

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Solution

The fourth proportional to 254,253.25, 350,869.21 and 139,532.55 is: 192,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,253.25 : 350,869.21 = 139,532.55 : x
  2. Step 2: Convert to fraction form
    254,253.25/350,869.21 = 139,532.55/x
  3. Step 3: Cross multiply
    254,253.25x = 350,869.21 × 139,532.55
  4. Step 4: Simplify right side
    254,253.25x = 48,957,675,587.79
  5. Step 5: Solve for x
    x = 48,957,675,587.79/254,253.25
  6. Step 6: Final answer
    x = 192,554.77

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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.