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Finding the Fourth Proportional to 201,329.60, 277,828.88 and 115,285.76

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Solution

The fourth proportional to 201,329.60, 277,828.88 and 115,285.76 is: 159,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,329.60 : 277,828.88 = 115,285.76 : x
  2. Step 2: Convert to fraction form
    201,329.60/277,828.88 = 115,285.76/x
  3. Step 3: Cross multiply
    201,329.60x = 277,828.88 × 115,285.76
  4. Step 4: Simplify right side
    201,329.60x = 32,029,713,580.75
  5. Step 5: Solve for x
    x = 32,029,713,580.75/201,329.60
  6. Step 6: Final answer
    x = 159,090.93

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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.