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Finding the Fourth Proportional to 214,698.87, 321,549.89 and 207,225.68

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Solution

The fourth proportional to 214,698.87, 321,549.89 and 207,225.68 is: 310,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,698.87 : 321,549.89 = 207,225.68 : x
  2. Step 2: Convert to fraction form
    214,698.87/321,549.89 = 207,225.68/x
  3. Step 3: Cross multiply
    214,698.87x = 321,549.89 × 207,225.68
  4. Step 4: Simplify right side
    214,698.87x = 66,633,391,965.30
  5. Step 5: Solve for x
    x = 66,633,391,965.30/214,698.87
  6. Step 6: Final answer
    x = 310,357.44

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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.