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Finding the Fourth Proportional to 403,721.50, 557,135.68 and 224,873.50

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Solution

The fourth proportional to 403,721.50, 557,135.68 and 224,873.50 is: 310,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,721.50 : 557,135.68 = 224,873.50 : x
  2. Step 2: Convert to fraction form
    403,721.50/557,135.68 = 224,873.50/x
  3. Step 3: Cross multiply
    403,721.50x = 557,135.68 × 224,873.50
  4. Step 4: Simplify right side
    403,721.50x = 125,285,050,336.48
  5. Step 5: Solve for x
    x = 125,285,050,336.48/403,721.50
  6. Step 6: Final answer
    x = 310,325.44

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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.