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Finding the Fourth Proportional to 340,860.96, 470,391.30 and 187,905.02

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Solution

The fourth proportional to 340,860.96, 470,391.30 and 187,905.02 is: 259,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,860.96 : 470,391.30 = 187,905.02 : x
  2. Step 2: Convert to fraction form
    340,860.96/470,391.30 = 187,905.02/x
  3. Step 3: Cross multiply
    340,860.96x = 470,391.30 × 187,905.02
  4. Step 4: Simplify right side
    340,860.96x = 88,388,884,282.37
  5. Step 5: Solve for x
    x = 88,388,884,282.37/340,860.96
  6. Step 6: Final answer
    x = 259,310.67

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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.