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Finding the Fourth Proportional to 223,887.40, 335,247.90 and 213,389.80

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Solution

The fourth proportional to 223,887.40, 335,247.90 and 213,389.80 is: 319,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,887.40 : 335,247.90 = 213,389.80 : x
  2. Step 2: Convert to fraction form
    223,887.40/335,247.90 = 213,389.80/x
  3. Step 3: Cross multiply
    223,887.40x = 335,247.90 × 213,389.80
  4. Step 4: Simplify right side
    223,887.40x = 71,538,482,331.42
  5. Step 5: Solve for x
    x = 71,538,482,331.42/223,887.40
  6. Step 6: Final answer
    x = 319,528.84

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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.