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Finding the Fourth Proportional to 370,649.18, 511,491.30 and 200,879.66

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Solution

The fourth proportional to 370,649.18, 511,491.30 and 200,879.66 is: 277,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,649.18 : 511,491.30 = 200,879.66 : x
  2. Step 2: Convert to fraction form
    370,649.18/511,491.30 = 200,879.66/x
  3. Step 3: Cross multiply
    370,649.18x = 511,491.30 × 200,879.66
  4. Step 4: Simplify right side
    370,649.18x = 102,748,198,436.96
  5. Step 5: Solve for x
    x = 102,748,198,436.96/370,649.18
  6. Step 6: Final answer
    x = 277,211.45

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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.