Home / 251,516.72-347,099.64-138,342.44

Finding the Fourth Proportional to 251,516.72, 347,099.64 and 138,342.44

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Solution

The fourth proportional to 251,516.72, 347,099.64 and 138,342.44 is: 190,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,516.72 : 347,099.64 = 138,342.44 : x
  2. Step 2: Convert to fraction form
    251,516.72/347,099.64 = 138,342.44/x
  3. Step 3: Cross multiply
    251,516.72x = 347,099.64 × 138,342.44
  4. Step 4: Simplify right side
    251,516.72x = 48,018,611,120.72
  5. Step 5: Solve for x
    x = 48,018,611,120.72/251,516.72
  6. Step 6: Final answer
    x = 190,916.18

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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.