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Finding the Fourth Proportional to 228,001.70, 342,002.55 and 225,668.90

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Solution

The fourth proportional to 228,001.70, 342,002.55 and 225,668.90 is: 338,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,001.70 : 342,002.55 = 225,668.90 : x
  2. Step 2: Convert to fraction form
    228,001.70/342,002.55 = 225,668.90/x
  3. Step 3: Cross multiply
    228,001.70x = 342,002.55 × 225,668.90
  4. Step 4: Simplify right side
    228,001.70x = 77,179,339,255.70
  5. Step 5: Solve for x
    x = 77,179,339,255.70/228,001.70
  6. Step 6: Final answer
    x = 338,503.35

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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.