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Finding the Fourth Proportional to 356,510.88, 491,879.52 and 203,544

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Solution

The fourth proportional to 356,510.88, 491,879.52 and 203,544 is: 280,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,510.88 : 491,879.52 = 203,544 : x
  2. Step 2: Convert to fraction form
    356,510.88/491,879.52 = 203,544/x
  3. Step 3: Cross multiply
    356,510.88x = 491,879.52 × 203,544
  4. Step 4: Simplify right side
    356,510.88x = 100,119,125,018.88
  5. Step 5: Solve for x
    x = 100,119,125,018.88/356,510.88
  6. Step 6: Final answer
    x = 280,830.49

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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.