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Finding the Fourth Proportional to 351,702.09, 485,325.90 and 224,364

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Solution

The fourth proportional to 351,702.09, 485,325.90 and 224,364 is: 309,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,702.09 : 485,325.90 = 224,364 : x
  2. Step 2: Convert to fraction form
    351,702.09/485,325.90 = 224,364/x
  3. Step 3: Cross multiply
    351,702.09x = 485,325.90 × 224,364
  4. Step 4: Simplify right side
    351,702.09x = 108,889,660,227.60
  5. Step 5: Solve for x
    x = 108,889,660,227.60/351,702.09
  6. Step 6: Final answer
    x = 309,607.66

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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.