Home / 228,160.06-340,185.11-209,190.68

Finding the Fourth Proportional to 228,160.06, 340,185.11 and 209,190.68

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Solution

The fourth proportional to 228,160.06, 340,185.11 and 209,190.68 is: 311,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,160.06 : 340,185.11 = 209,190.68 : x
  2. Step 2: Convert to fraction form
    228,160.06/340,185.11 = 209,190.68/x
  3. Step 3: Cross multiply
    228,160.06x = 340,185.11 × 209,190.68
  4. Step 4: Simplify right side
    228,160.06x = 71,163,553,440.82
  5. Step 5: Solve for x
    x = 71,163,553,440.82/228,160.06
  6. Step 6: Final answer
    x = 311,901.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.