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Finding the Fourth Proportional to 359,187, 538,783.20 and 159,453.70

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Solution

The fourth proportional to 359,187, 538,783.20 and 159,453.70 is: 239,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,187 : 538,783.20 = 159,453.70 : x
  2. Step 2: Convert to fraction form
    359,187/538,783.20 = 159,453.70/x
  3. Step 3: Cross multiply
    359,187x = 538,783.20 × 159,453.70
  4. Step 4: Simplify right side
    359,187x = 85,910,974,737.84
  5. Step 5: Solve for x
    x = 85,910,974,737.84/359,187
  6. Step 6: Final answer
    x = 239,181.75

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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.