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Finding the Fourth Proportional to 245,274.88, 338,571.80 and 143,333.44

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Solution

The fourth proportional to 245,274.88, 338,571.80 and 143,333.44 is: 197,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,274.88 : 338,571.80 = 143,333.44 : x
  2. Step 2: Convert to fraction form
    245,274.88/338,571.80 = 143,333.44/x
  3. Step 3: Cross multiply
    245,274.88x = 338,571.80 × 143,333.44
  4. Step 4: Simplify right side
    245,274.88x = 48,528,660,780.99
  5. Step 5: Solve for x
    x = 48,528,660,780.99/245,274.88
  6. Step 6: Final answer
    x = 197,854.18

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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.