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Finding the Fourth Proportional to 307,468.06, 424,241.11 and 186,672.86

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Solution

The fourth proportional to 307,468.06, 424,241.11 and 186,672.86 is: 257,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,468.06 : 424,241.11 = 186,672.86 : x
  2. Step 2: Convert to fraction form
    307,468.06/424,241.11 = 186,672.86/x
  3. Step 3: Cross multiply
    307,468.06x = 424,241.11 × 186,672.86
  4. Step 4: Simplify right side
    307,468.06x = 79,194,301,333.27
  5. Step 5: Solve for x
    x = 79,194,301,333.27/307,468.06
  6. Step 6: Final answer
    x = 257,569.20

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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.