Home / 309,941.95-464,732.28-120,180.61

Finding the Fourth Proportional to 309,941.95, 464,732.28 and 120,180.61

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Solution

The fourth proportional to 309,941.95, 464,732.28 and 120,180.61 is: 180,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,941.95 : 464,732.28 = 120,180.61 : x
  2. Step 2: Convert to fraction form
    309,941.95/464,732.28 = 120,180.61/x
  3. Step 3: Cross multiply
    309,941.95x = 464,732.28 × 120,180.61
  4. Step 4: Simplify right side
    309,941.95x = 55,851,808,897.09
  5. Step 5: Solve for x
    x = 55,851,808,897.09/309,941.95
  6. Step 6: Final answer
    x = 180,200.87

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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.