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Finding the Fourth Proportional to 201,390.54, 277,926.03 and 115,365.30

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Solution

The fourth proportional to 201,390.54, 277,926.03 and 115,365.30 is: 159,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,390.54 : 277,926.03 = 115,365.30 : x
  2. Step 2: Convert to fraction form
    201,390.54/277,926.03 = 115,365.30/x
  3. Step 3: Cross multiply
    201,390.54x = 277,926.03 × 115,365.30
  4. Step 4: Simplify right side
    201,390.54x = 32,063,019,828.76
  5. Step 5: Solve for x
    x = 32,063,019,828.76/201,390.54
  6. Step 6: Final answer
    x = 159,208.17

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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.