Home / 378,260.88-522,000.01-208,498.65

Finding the Fourth Proportional to 378,260.88, 522,000.01 and 208,498.65

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Solution

The fourth proportional to 378,260.88, 522,000.01 and 208,498.65 is: 287,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,260.88 : 522,000.01 = 208,498.65 : x
  2. Step 2: Convert to fraction form
    378,260.88/522,000.01 = 208,498.65/x
  3. Step 3: Cross multiply
    378,260.88x = 522,000.01 × 208,498.65
  4. Step 4: Simplify right side
    378,260.88x = 108,836,297,384.99
  5. Step 5: Solve for x
    x = 108,836,297,384.99/378,260.88
  6. Step 6: Final answer
    x = 287,728.13

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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.