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Finding the Fourth Proportional to 230,588.10, 318,119.76 and 139,910.76

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Solution

The fourth proportional to 230,588.10, 318,119.76 and 139,910.76 is: 193,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,588.10 : 318,119.76 = 139,910.76 : x
  2. Step 2: Convert to fraction form
    230,588.10/318,119.76 = 139,910.76/x
  3. Step 3: Cross multiply
    230,588.10x = 318,119.76 × 139,910.76
  4. Step 4: Simplify right side
    230,588.10x = 44,508,377,392.62
  5. Step 5: Solve for x
    x = 44,508,377,392.62/230,588.10
  6. Step 6: Final answer
    x = 193,021.14

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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.