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Finding the Fourth Proportional to 369,645.78, 510,110.82 and 199,879.50

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Solution

The fourth proportional to 369,645.78, 510,110.82 and 199,879.50 is: 275,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,645.78 : 510,110.82 = 199,879.50 : x
  2. Step 2: Convert to fraction form
    369,645.78/510,110.82 = 199,879.50/x
  3. Step 3: Cross multiply
    369,645.78x = 510,110.82 × 199,879.50
  4. Step 4: Simplify right side
    369,645.78x = 101,960,695,646.19
  5. Step 5: Solve for x
    x = 101,960,695,646.19/369,645.78
  6. Step 6: Final answer
    x = 275,833.52

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1.5x scale

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.