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Finding the Fourth Proportional to 359,130.86, 538,579.07 and 119,180.31

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Solution

The fourth proportional to 359,130.86, 538,579.07 and 119,180.31 is: 178,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,130.86 : 538,579.07 = 119,180.31 : x
  2. Step 2: Convert to fraction form
    359,130.86/538,579.07 = 119,180.31/x
  3. Step 3: Cross multiply
    359,130.86x = 538,579.07 × 119,180.31
  4. Step 4: Simplify right side
    359,130.86x = 64,188,018,353.46
  5. Step 5: Solve for x
    x = 64,188,018,353.46/359,130.86
  6. Step 6: Final answer
    x = 178,731.56

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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.