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Finding the Fourth Proportional to 228,217.80, 342,326.70 and 226,905.60

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Solution

The fourth proportional to 228,217.80, 342,326.70 and 226,905.60 is: 340,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,217.80 : 342,326.70 = 226,905.60 : x
  2. Step 2: Convert to fraction form
    228,217.80/342,326.70 = 226,905.60/x
  3. Step 3: Cross multiply
    228,217.80x = 342,326.70 × 226,905.60
  4. Step 4: Simplify right side
    228,217.80x = 77,675,845,259.52
  5. Step 5: Solve for x
    x = 77,675,845,259.52/228,217.80
  6. Step 6: Final answer
    x = 340,358.40

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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.