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Finding the Fourth Proportional to 340,610.62, 470,079.60 and 187,664.50

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Solution

The fourth proportional to 340,610.62, 470,079.60 and 187,664.50 is: 258,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,610.62 : 470,079.60 = 187,664.50 : x
  2. Step 2: Convert to fraction form
    340,610.62/470,079.60 = 187,664.50/x
  3. Step 3: Cross multiply
    340,610.62x = 470,079.60 × 187,664.50
  4. Step 4: Simplify right side
    340,610.62x = 88,217,249,805.48
  5. Step 5: Solve for x
    x = 88,217,249,805.48/340,610.62
  6. Step 6: Final answer
    x = 258,997.36

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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.