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Finding the Fourth Proportional to 371,297.25, 512,347.59 and 207,930.96

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Solution

The fourth proportional to 371,297.25, 512,347.59 and 207,930.96 is: 286,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,297.25 : 512,347.59 = 207,930.96 : x
  2. Step 2: Convert to fraction form
    371,297.25/512,347.59 = 207,930.96/x
  3. Step 3: Cross multiply
    371,297.25x = 512,347.59 × 207,930.96
  4. Step 4: Simplify right side
    371,297.25x = 106,532,926,242.39
  5. Step 5: Solve for x
    x = 106,532,926,242.39/371,297.25
  6. Step 6: Final answer
    x = 286,920.86

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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.