Home / 376,006.89-518,955.84-223,129.38

Finding the Fourth Proportional to 376,006.89, 518,955.84 and 223,129.38

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Solution

The fourth proportional to 376,006.89, 518,955.84 and 223,129.38 is: 307,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,006.89 : 518,955.84 = 223,129.38 : x
  2. Step 2: Convert to fraction form
    376,006.89/518,955.84 = 223,129.38/x
  3. Step 3: Cross multiply
    376,006.89x = 518,955.84 × 223,129.38
  4. Step 4: Simplify right side
    376,006.89x = 115,794,292,880.50
  5. Step 5: Solve for x
    x = 115,794,292,880.50/376,006.89
  6. Step 6: Final answer
    x = 307,957.90

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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.