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Finding the Fourth Proportional to 214,099.61, 321,149.41 and 89,353.13

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Solution

The fourth proportional to 214,099.61, 321,149.41 and 89,353.13 is: 134,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,099.61 : 321,149.41 = 89,353.13 : x
  2. Step 2: Convert to fraction form
    214,099.61/321,149.41 = 89,353.13/x
  3. Step 3: Cross multiply
    214,099.61x = 321,149.41 × 89,353.13
  4. Step 4: Simplify right side
    214,099.61x = 28,695,703,152.02
  5. Step 5: Solve for x
    x = 28,695,703,152.02/214,099.61
  6. Step 6: Final answer
    x = 134,029.69

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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.