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Finding the Fourth Proportional to 299,303.50, 413,039.37 and 165,167.50

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Solution

The fourth proportional to 299,303.50, 413,039.37 and 165,167.50 is: 227,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,303.50 : 413,039.37 = 165,167.50 : x
  2. Step 2: Convert to fraction form
    299,303.50/413,039.37 = 165,167.50/x
  3. Step 3: Cross multiply
    299,303.50x = 413,039.37 × 165,167.50
  4. Step 4: Simplify right side
    299,303.50x = 68,220,680,144.48
  5. Step 5: Solve for x
    x = 68,220,680,144.48/299,303.50
  6. Step 6: Final answer
    x = 227,931.45

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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.