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Finding the Fourth Proportional to 624,121.72, 936,279.78 and 203,299.72

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Solution

The fourth proportional to 624,121.72, 936,279.78 and 203,299.72 is: 304,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,121.72 : 936,279.78 = 203,299.72 : x
  2. Step 2: Convert to fraction form
    624,121.72/936,279.78 = 203,299.72/x
  3. Step 3: Cross multiply
    624,121.72x = 936,279.78 × 203,299.72
  4. Step 4: Simplify right side
    624,121.72x = 190,345,417,115.66
  5. Step 5: Solve for x
    x = 190,345,417,115.66/624,121.72
  6. Step 6: Final answer
    x = 304,981.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.