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Finding the Fourth Proportional to 325,099.74, 487,701.66 and 100,407.36

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Solution

The fourth proportional to 325,099.74, 487,701.66 and 100,407.36 is: 150,627.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,099.74 : 487,701.66 = 100,407.36 : x
  2. Step 2: Convert to fraction form
    325,099.74/487,701.66 = 100,407.36/x
  3. Step 3: Cross multiply
    325,099.74x = 487,701.66 × 100,407.36
  4. Step 4: Simplify right side
    325,099.74x = 48,968,836,148.22
  5. Step 5: Solve for x
    x = 48,968,836,148.22/325,099.74
  6. Step 6: Final answer
    x = 150,627.12

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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.