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Finding the Fourth Proportional to 292,649.76, 438,673.32 and 115,084.80

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Solution

The fourth proportional to 292,649.76, 438,673.32 and 115,084.80 is: 172,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,649.76 : 438,673.32 = 115,084.80 : x
  2. Step 2: Convert to fraction form
    292,649.76/438,673.32 = 115,084.80/x
  3. Step 3: Cross multiply
    292,649.76x = 438,673.32 × 115,084.80
  4. Step 4: Simplify right side
    292,649.76x = 50,484,631,297.54
  5. Step 5: Solve for x
    x = 50,484,631,297.54/292,649.76
  6. Step 6: Final answer
    x = 172,508.71

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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.