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Finding the Fourth Proportional to 318,224.72, 439,135.08 and 174,990.80

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Solution

The fourth proportional to 318,224.72, 439,135.08 and 174,990.80 is: 241,479.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,224.72 : 439,135.08 = 174,990.80 : x
  2. Step 2: Convert to fraction form
    318,224.72/439,135.08 = 174,990.80/x
  3. Step 3: Cross multiply
    318,224.72x = 439,135.08 × 174,990.80
  4. Step 4: Simplify right side
    318,224.72x = 76,844,598,957.26
  5. Step 5: Solve for x
    x = 76,844,598,957.26/318,224.72
  6. Step 6: Final answer
    x = 241,479.04

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1.5x scale

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.