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Finding the Fourth Proportional to 299,387.00, 412,452.25 and 208,578.71

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Solution

The fourth proportional to 299,387.00, 412,452.25 and 208,578.71 is: 287,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,387.00 : 412,452.25 = 208,578.71 : x
  2. Step 2: Convert to fraction form
    299,387.00/412,452.25 = 208,578.71/x
  3. Step 3: Cross multiply
    299,387.00x = 412,452.25 × 208,578.71
  4. Step 4: Simplify right side
    299,387.00x = 86,028,755,657.89
  5. Step 5: Solve for x
    x = 86,028,755,657.89/299,387.00
  6. Step 6: Final answer
    x = 287,349.67

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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.