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Finding the Fourth Proportional to 318,170.80, 439,064.48 and 174,929.74

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Solution

The fourth proportional to 318,170.80, 439,064.48 and 174,929.74 is: 241,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,170.80 : 439,064.48 = 174,929.74 : x
  2. Step 2: Convert to fraction form
    318,170.80/439,064.48 = 174,929.74/x
  3. Step 3: Cross multiply
    318,170.80x = 439,064.48 × 174,929.74
  4. Step 4: Simplify right side
    318,170.80x = 76,805,435,329.64
  5. Step 5: Solve for x
    x = 76,805,435,329.64/318,170.80
  6. Step 6: Final answer
    x = 241,396.87

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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.