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Finding the Fourth Proportional to 380,059.05, 524,481.54 and 207,977.05

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Solution

The fourth proportional to 380,059.05, 524,481.54 and 207,977.05 is: 287,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,059.05 : 524,481.54 = 207,977.05 : x
  2. Step 2: Convert to fraction form
    380,059.05/524,481.54 = 207,977.05/x
  3. Step 3: Cross multiply
    380,059.05x = 524,481.54 × 207,977.05
  4. Step 4: Simplify right side
    380,059.05x = 109,080,122,948.71
  5. Step 5: Solve for x
    x = 109,080,122,948.71/380,059.05
  6. Step 6: Final answer
    x = 287,008.36

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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.