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Finding the Fourth Proportional to 229,700.40, 343,967.40 and 219,202.80

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Solution

The fourth proportional to 229,700.40, 343,967.40 and 219,202.80 is: 328,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,700.40 : 343,967.40 = 219,202.80 : x
  2. Step 2: Convert to fraction form
    229,700.40/343,967.40 = 219,202.80/x
  3. Step 3: Cross multiply
    229,700.40x = 343,967.40 × 219,202.80
  4. Step 4: Simplify right side
    229,700.40x = 75,398,617,188.72
  5. Step 5: Solve for x
    x = 75,398,617,188.72/229,700.40
  6. Step 6: Final answer
    x = 328,247.65

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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.