Home / 309,490.15-464,195.69-119,820.76

Finding the Fourth Proportional to 309,490.15, 464,195.69 and 119,820.76

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Solution

The fourth proportional to 309,490.15, 464,195.69 and 119,820.76 is: 179,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,490.15 : 464,195.69 = 119,820.76 : x
  2. Step 2: Convert to fraction form
    309,490.15/464,195.69 = 119,820.76/x
  3. Step 3: Cross multiply
    309,490.15x = 464,195.69 × 119,820.76
  4. Step 4: Simplify right side
    309,490.15x = 55,620,280,364.52
  5. Step 5: Solve for x
    x = 55,620,280,364.52/309,490.15
  6. Step 6: Final answer
    x = 179,715.83

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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.