Home / 309,940.95-464,730.78-120,179.61

Finding the Fourth Proportional to 309,940.95, 464,730.78 and 120,179.61

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Solution

The fourth proportional to 309,940.95, 464,730.78 and 120,179.61 is: 180,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,940.95 : 464,730.78 = 120,179.61 : x
  2. Step 2: Convert to fraction form
    309,940.95/464,730.78 = 120,179.61/x
  3. Step 3: Cross multiply
    309,940.95x = 464,730.78 × 120,179.61
  4. Step 4: Simplify right side
    309,940.95x = 55,851,163,895.40
  5. Step 5: Solve for x
    x = 55,851,163,895.40/309,940.95
  6. Step 6: Final answer
    x = 180,199.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.