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Finding the Fourth Proportional to 307,726.02, 424,683.30 and 171,786.50

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Solution

The fourth proportional to 307,726.02, 424,683.30 and 171,786.50 is: 237,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,726.02 : 424,683.30 = 171,786.50 : x
  2. Step 2: Convert to fraction form
    307,726.02/424,683.30 = 171,786.50/x
  3. Step 3: Cross multiply
    307,726.02x = 424,683.30 × 171,786.50
  4. Step 4: Simplify right side
    307,726.02x = 72,954,860,217.64
  5. Step 5: Solve for x
    x = 72,954,860,217.64/307,726.02
  6. Step 6: Final answer
    x = 237,077.32

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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.