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Finding the Fourth Proportional to 214,400.63, 321,600.95 and 89,741.63

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Solution

The fourth proportional to 214,400.63, 321,600.95 and 89,741.63 is: 134,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,400.63 : 321,600.95 = 89,741.63 : x
  2. Step 2: Convert to fraction form
    214,400.63/321,600.95 = 89,741.63/x
  3. Step 3: Cross multiply
    214,400.63x = 321,600.95 × 89,741.63
  4. Step 4: Simplify right side
    214,400.63x = 28,860,991,405.84
  5. Step 5: Solve for x
    x = 28,860,991,405.84/214,400.63
  6. Step 6: Final answer
    x = 134,612.44

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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.