Home / 348,099.30-521,112.15-207,785.70

Finding the Fourth Proportional to 348,099.30, 521,112.15 and 207,785.70

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Solution

The fourth proportional to 348,099.30, 521,112.15 and 207,785.70 is: 311,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,099.30 : 521,112.15 = 207,785.70 : x
  2. Step 2: Convert to fraction form
    348,099.30/521,112.15 = 207,785.70/x
  3. Step 3: Cross multiply
    348,099.30x = 521,112.15 × 207,785.70
  4. Step 4: Simplify right side
    348,099.30x = 108,279,652,866.26
  5. Step 5: Solve for x
    x = 108,279,652,866.26/348,099.30
  6. Step 6: Final answer
    x = 311,059.67

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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.