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Finding the Fourth Proportional to 318,259.63, 439,073.98 and 182,220.87

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Solution

The fourth proportional to 318,259.63, 439,073.98 and 182,220.87 is: 251,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,259.63 : 439,073.98 = 182,220.87 : x
  2. Step 2: Convert to fraction form
    318,259.63/439,073.98 = 182,220.87/x
  3. Step 3: Cross multiply
    318,259.63x = 439,073.98 × 182,220.87
  4. Step 4: Simplify right side
    318,259.63x = 80,008,442,629.96
  5. Step 5: Solve for x
    x = 80,008,442,629.96/318,259.63
  6. Step 6: Final answer
    x = 251,393.63

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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.