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Finding the Fourth Proportional to 201,053.04, 277,442.36 and 115,013.72

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Solution

The fourth proportional to 201,053.04, 277,442.36 and 115,013.72 is: 158,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,053.04 : 277,442.36 = 115,013.72 : x
  2. Step 2: Convert to fraction form
    201,053.04/277,442.36 = 115,013.72/x
  3. Step 3: Cross multiply
    201,053.04x = 277,442.36 × 115,013.72
  4. Step 4: Simplify right side
    201,053.04x = 31,909,679,105.97
  5. Step 5: Solve for x
    x = 31,909,679,105.97/201,053.04
  6. Step 6: Final answer
    x = 158,712.74

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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.