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Finding the Fourth Proportional to 340,760.81, 470,253.17 and 187,804.55

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Solution

The fourth proportional to 340,760.81, 470,253.17 and 187,804.55 is: 259,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,760.81 : 470,253.17 = 187,804.55 : x
  2. Step 2: Convert to fraction form
    340,760.81/470,253.17 = 187,804.55/x
  3. Step 3: Cross multiply
    340,760.81x = 470,253.17 × 187,804.55
  4. Step 4: Simplify right side
    340,760.81x = 88,315,683,096.17
  5. Step 5: Solve for x
    x = 88,315,683,096.17/340,760.81
  6. Step 6: Final answer
    x = 259,172.07

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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.