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Finding the Fourth Proportional to 340,881.68, 470,395.48 and 187,911.92

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Solution

The fourth proportional to 340,881.68, 470,395.48 and 187,911.92 is: 259,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,881.68 : 470,395.48 = 187,911.92 : x
  2. Step 2: Convert to fraction form
    340,881.68/470,395.48 = 187,911.92/x
  3. Step 3: Cross multiply
    340,881.68x = 470,395.48 × 187,911.92
  4. Step 4: Simplify right side
    340,881.68x = 88,392,917,806.12
  5. Step 5: Solve for x
    x = 88,392,917,806.12/340,881.68
  6. Step 6: Final answer
    x = 259,306.74

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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.