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Finding the Fourth Proportional to 340,919.66, 470,447.45 and 187,949.49

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Solution

The fourth proportional to 340,919.66, 470,447.45 and 187,949.49 is: 259,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,919.66 : 470,447.45 = 187,949.49 : x
  2. Step 2: Convert to fraction form
    340,919.66/470,447.45 = 187,949.49/x
  3. Step 3: Cross multiply
    340,919.66x = 470,447.45 × 187,949.49
  4. Step 4: Simplify right side
    340,919.66x = 88,420,358,769.17
  5. Step 5: Solve for x
    x = 88,420,358,769.17/340,919.66
  6. Step 6: Final answer
    x = 259,358.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.