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Finding the Fourth Proportional to 229,511.80, 344,267.70 and 213,765.40

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Solution

The fourth proportional to 229,511.80, 344,267.70 and 213,765.40 is: 320,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,511.80 : 344,267.70 = 213,765.40 : x
  2. Step 2: Convert to fraction form
    229,511.80/344,267.70 = 213,765.40/x
  3. Step 3: Cross multiply
    229,511.80x = 344,267.70 × 213,765.40
  4. Step 4: Simplify right side
    229,511.80x = 73,592,522,597.58
  5. Step 5: Solve for x
    x = 73,592,522,597.58/229,511.80
  6. Step 6: Final answer
    x = 320,648.10

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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.