Home / 199,565.40-299,348.10-143,286.60

Finding the Fourth Proportional to 199,565.40, 299,348.10 and 143,286.60

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Solution

The fourth proportional to 199,565.40, 299,348.10 and 143,286.60 is: 214,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,565.40 : 299,348.10 = 143,286.60 : x
  2. Step 2: Convert to fraction form
    199,565.40/299,348.10 = 143,286.60/x
  3. Step 3: Cross multiply
    199,565.40x = 299,348.10 × 143,286.60
  4. Step 4: Simplify right side
    199,565.40x = 42,892,571,465.46
  5. Step 5: Solve for x
    x = 42,892,571,465.46/199,565.40
  6. Step 6: Final answer
    x = 214,929.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.