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Finding the Fourth Proportional to 224,622.77, 309,985.81 and 122,654.71

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Solution

The fourth proportional to 224,622.77, 309,985.81 and 122,654.71 is: 169,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,622.77 : 309,985.81 = 122,654.71 : x
  2. Step 2: Convert to fraction form
    224,622.77/309,985.81 = 122,654.71/x
  3. Step 3: Cross multiply
    224,622.77x = 309,985.81 × 122,654.71
  4. Step 4: Simplify right side
    224,622.77x = 38,021,218,311.81
  5. Step 5: Solve for x
    x = 38,021,218,311.81/224,622.77
  6. Step 6: Final answer
    x = 169,266.98

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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.