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Finding the Fourth Proportional to 245,284.02, 338,480.88 and 143,318.88

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Solution

The fourth proportional to 245,284.02, 338,480.88 and 143,318.88 is: 197,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,284.02 : 338,480.88 = 143,318.88 : x
  2. Step 2: Convert to fraction form
    245,284.02/338,480.88 = 143,318.88/x
  3. Step 3: Cross multiply
    245,284.02x = 338,480.88 × 143,318.88
  4. Step 4: Simplify right side
    245,284.02x = 48,510,700,623.01
  5. Step 5: Solve for x
    x = 48,510,700,623.01/245,284.02
  6. Step 6: Final answer
    x = 197,773.59

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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.