Home / 311,495.22-430,050.15-204,252.30

Finding the Fourth Proportional to 311,495.22, 430,050.15 and 204,252.30

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Solution

The fourth proportional to 311,495.22, 430,050.15 and 204,252.30 is: 281,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,495.22 : 430,050.15 = 204,252.30 : x
  2. Step 2: Convert to fraction form
    311,495.22/430,050.15 = 204,252.30/x
  3. Step 3: Cross multiply
    311,495.22x = 430,050.15 × 204,252.30
  4. Step 4: Simplify right side
    311,495.22x = 87,838,732,252.85
  5. Step 5: Solve for x
    x = 87,838,732,252.85/311,495.22
  6. Step 6: Final answer
    x = 281,990.63

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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.