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Finding the Fourth Proportional to 224,220.30, 309,412.35 and 139,335.54

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Solution

The fourth proportional to 224,220.30, 309,412.35 and 139,335.54 is: 192,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,220.30 : 309,412.35 = 139,335.54 : x
  2. Step 2: Convert to fraction form
    224,220.30/309,412.35 = 139,335.54/x
  3. Step 3: Cross multiply
    224,220.30x = 309,412.35 × 139,335.54
  4. Step 4: Simplify right side
    224,220.30x = 43,112,136,869.92
  5. Step 5: Solve for x
    x = 43,112,136,869.92/224,220.30
  6. Step 6: Final answer
    x = 192,275.80

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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.