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Finding the Fourth Proportional to 380,560.71, 525,191.09 and 210,794.82

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Solution

The fourth proportional to 380,560.71, 525,191.09 and 210,794.82 is: 290,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,560.71 : 525,191.09 = 210,794.82 : x
  2. Step 2: Convert to fraction form
    380,560.71/525,191.09 = 210,794.82/x
  3. Step 3: Cross multiply
    380,560.71x = 525,191.09 × 210,794.82
  4. Step 4: Simplify right side
    380,560.71x = 110,707,560,228.18
  5. Step 5: Solve for x
    x = 110,707,560,228.18/380,560.71
  6. Step 6: Final answer
    x = 290,906.44

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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.