Home / 369,867.50-510,420.84-200,105.28

Finding the Fourth Proportional to 369,867.50, 510,420.84 and 200,105.28

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Solution

The fourth proportional to 369,867.50, 510,420.84 and 200,105.28 is: 276,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,867.50 : 510,420.84 = 200,105.28 : x
  2. Step 2: Convert to fraction form
    369,867.50/510,420.84 = 200,105.28/x
  3. Step 3: Cross multiply
    369,867.50x = 510,420.84 × 200,105.28
  4. Step 4: Simplify right side
    369,867.50x = 102,137,905,106.04
  5. Step 5: Solve for x
    x = 102,137,905,106.04/369,867.50
  6. Step 6: Final answer
    x = 276,147.28

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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.