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Finding the Fourth Proportional to 192,254.64, 288,381.90 and 139,996.68

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Solution

The fourth proportional to 192,254.64, 288,381.90 and 139,996.68 is: 209,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,254.64 : 288,381.90 = 139,996.68 : x
  2. Step 2: Convert to fraction form
    192,254.64/288,381.90 = 139,996.68/x
  3. Step 3: Cross multiply
    192,254.64x = 288,381.90 × 139,996.68
  4. Step 4: Simplify right side
    192,254.64x = 40,372,508,572.09
  5. Step 5: Solve for x
    x = 40,372,508,572.09/192,254.64
  6. Step 6: Final answer
    x = 209,994.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.