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Finding the Fourth Proportional to 318,485.61, 439,459.92 and 182,493.41

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Solution

The fourth proportional to 318,485.61, 439,459.92 and 182,493.41 is: 251,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,485.61 : 439,459.92 = 182,493.41 : x
  2. Step 2: Convert to fraction form
    318,485.61/439,459.92 = 182,493.41/x
  3. Step 3: Cross multiply
    318,485.61x = 439,459.92 × 182,493.41
  4. Step 4: Simplify right side
    318,485.61x = 80,198,537,161.83
  5. Step 5: Solve for x
    x = 80,198,537,161.83/318,485.61
  6. Step 6: Final answer
    x = 251,812.12

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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.