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Finding the Fourth Proportional to 341,856.21, 512,784.69 and 89,136.48

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Solution

The fourth proportional to 341,856.21, 512,784.69 and 89,136.48 is: 133,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,856.21 : 512,784.69 = 89,136.48 : x
  2. Step 2: Convert to fraction form
    341,856.21/512,784.69 = 89,136.48/x
  3. Step 3: Cross multiply
    341,856.21x = 512,784.69 × 89,136.48
  4. Step 4: Simplify right side
    341,856.21x = 45,707,823,460.93
  5. Step 5: Solve for x
    x = 45,707,823,460.93/341,856.21
  6. Step 6: Final answer
    x = 133,704.82

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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.