Home / 231,820.60-347,730.90-143,247.10

Finding the Fourth Proportional to 231,820.60, 347,730.90 and 143,247.10

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Solution

The fourth proportional to 231,820.60, 347,730.90 and 143,247.10 is: 214,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,820.60 : 347,730.90 = 143,247.10 : x
  2. Step 2: Convert to fraction form
    231,820.60/347,730.90 = 143,247.10/x
  3. Step 3: Cross multiply
    231,820.60x = 347,730.90 × 143,247.10
  4. Step 4: Simplify right side
    231,820.60x = 49,811,443,005.39
  5. Step 5: Solve for x
    x = 49,811,443,005.39/231,820.60
  6. Step 6: Final answer
    x = 214,870.65

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1.5x scale

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.