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Finding the Fourth Proportional to 646,297.93, 969,889.70 and 225,573.81

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Solution

The fourth proportional to 646,297.93, 969,889.70 and 225,573.81 is: 338,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,297.93 : 969,889.70 = 225,573.81 : x
  2. Step 2: Convert to fraction form
    646,297.93/969,889.70 = 225,573.81/x
  3. Step 3: Cross multiply
    646,297.93x = 969,889.70 × 225,573.81
  4. Step 4: Simplify right side
    646,297.93x = 218,781,714,908.76
  5. Step 5: Solve for x
    x = 218,781,714,908.76/646,297.93
  6. Step 6: Final answer
    x = 338,515.26

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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.