Home / 376,428.90-519,243.61-223,366.22

Finding the Fourth Proportional to 376,428.90, 519,243.61 and 223,366.22

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Solution

The fourth proportional to 376,428.90, 519,243.61 and 223,366.22 is: 308,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,428.90 : 519,243.61 = 223,366.22 : x
  2. Step 2: Convert to fraction form
    376,428.90/519,243.61 = 223,366.22/x
  3. Step 3: Cross multiply
    376,428.90x = 519,243.61 × 223,366.22
  4. Step 4: Simplify right side
    376,428.90x = 115,981,482,424.85
  5. Step 5: Solve for x
    x = 115,981,482,424.85/376,428.90
  6. Step 6: Final answer
    x = 308,109.93

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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.