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Finding the Fourth Proportional to 224,418.28, 309,809.48 and 139,562.68

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Solution

The fourth proportional to 224,418.28, 309,809.48 and 139,562.68 is: 192,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,418.28 : 309,809.48 = 139,562.68 : x
  2. Step 2: Convert to fraction form
    224,418.28/309,809.48 = 139,562.68/x
  3. Step 3: Cross multiply
    224,418.28x = 309,809.48 × 139,562.68
  4. Step 4: Simplify right side
    224,418.28x = 43,237,841,318.21
  5. Step 5: Solve for x
    x = 43,237,841,318.21/224,418.28
  6. Step 6: Final answer
    x = 192,666.31

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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.