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Finding the Fourth Proportional to 254,218.89, 350,815.39 and 139,497.18

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Solution

The fourth proportional to 254,218.89, 350,815.39 and 139,497.18 is: 192,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,218.89 : 350,815.39 = 139,497.18 : x
  2. Step 2: Convert to fraction form
    254,218.89/350,815.39 = 139,497.18/x
  3. Step 3: Cross multiply
    254,218.89x = 350,815.39 × 139,497.18
  4. Step 4: Simplify right side
    254,218.89x = 48,937,755,502.78
  5. Step 5: Solve for x
    x = 48,937,755,502.78/254,218.89
  6. Step 6: Final answer
    x = 192,502.44

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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.