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Finding the Fourth Proportional to 663,493.96, 995,210.70 and 214,235.56

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Solution

The fourth proportional to 663,493.96, 995,210.70 and 214,235.56 is: 321,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,493.96 : 995,210.70 = 214,235.56 : x
  2. Step 2: Convert to fraction form
    663,493.96/995,210.70 = 214,235.56/x
  3. Step 3: Cross multiply
    663,493.96x = 995,210.70 × 214,235.56
  4. Step 4: Simplify right side
    663,493.96x = 213,209,521,632.49
  5. Step 5: Solve for x
    x = 213,209,521,632.49/663,493.96
  6. Step 6: Final answer
    x = 321,343.58

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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.