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Finding the Fourth Proportional to 371,053.76, 512,055.17 and 201,287.89

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Solution

The fourth proportional to 371,053.76, 512,055.17 and 201,287.89 is: 277,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,053.76 : 512,055.17 = 201,287.89 : x
  2. Step 2: Convert to fraction form
    371,053.76/512,055.17 = 201,287.89/x
  3. Step 3: Cross multiply
    371,053.76x = 512,055.17 × 201,287.89
  4. Step 4: Simplify right side
    371,053.76x = 103,070,502,172.62
  5. Step 5: Solve for x
    x = 103,070,502,172.62/371,053.76
  6. Step 6: Final answer
    x = 277,777.81

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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.