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Finding the Fourth Proportional to 440,834.86, 661,232.85 and 141,330.48

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Solution

The fourth proportional to 440,834.86, 661,232.85 and 141,330.48 is: 211,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,834.86 : 661,232.85 = 141,330.48 : x
  2. Step 2: Convert to fraction form
    440,834.86/661,232.85 = 141,330.48/x
  3. Step 3: Cross multiply
    440,834.86x = 661,232.85 × 141,330.48
  4. Step 4: Simplify right side
    440,834.86x = 93,452,356,082.27
  5. Step 5: Solve for x
    x = 93,452,356,082.27/440,834.86
  6. Step 6: Final answer
    x = 211,989.49

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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.