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Finding the Fourth Proportional to 224,371.50, 309,638.48 and 122,398.65

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Solution

The fourth proportional to 224,371.50, 309,638.48 and 122,398.65 is: 168,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,371.50 : 309,638.48 = 122,398.65 : x
  2. Step 2: Convert to fraction form
    224,371.50/309,638.48 = 122,398.65/x
  3. Step 3: Cross multiply
    224,371.50x = 309,638.48 × 122,398.65
  4. Step 4: Simplify right side
    224,371.50x = 37,899,331,328.06
  5. Step 5: Solve for x
    x = 37,899,331,328.06/224,371.50
  6. Step 6: Final answer
    x = 168,913.30

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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.