Home / 231,899.05-347,807.56-105,509.58

Finding the Fourth Proportional to 231,899.05, 347,807.56 and 105,509.58

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Solution

The fourth proportional to 231,899.05, 347,807.56 and 105,509.58 is: 158,245.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,899.05 : 347,807.56 = 105,509.58 : x
  2. Step 2: Convert to fraction form
    231,899.05/347,807.56 = 105,509.58/x
  3. Step 3: Cross multiply
    231,899.05x = 347,807.56 × 105,509.58
  4. Step 4: Simplify right side
    231,899.05x = 36,697,029,576.42
  5. Step 5: Solve for x
    x = 36,697,029,576.42/231,899.05
  6. Step 6: Final answer
    x = 158,245.71

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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.