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Finding the Fourth Proportional to 229,153.70, 343,730.55 and 218,267.30

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Solution

The fourth proportional to 229,153.70, 343,730.55 and 218,267.30 is: 327,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,153.70 : 343,730.55 = 218,267.30 : x
  2. Step 2: Convert to fraction form
    229,153.70/343,730.55 = 218,267.30/x
  3. Step 3: Cross multiply
    229,153.70x = 343,730.55 × 218,267.30
  4. Step 4: Simplify right side
    229,153.70x = 75,025,139,076.02
  5. Step 5: Solve for x
    x = 75,025,139,076.02/229,153.70
  6. Step 6: Final answer
    x = 327,400.95

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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.