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Finding the Fourth Proportional to 380,610.76, 525,235.62 and 210,846.28

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Solution

The fourth proportional to 380,610.76, 525,235.62 and 210,846.28 is: 290,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,610.76 : 525,235.62 = 210,846.28 : x
  2. Step 2: Convert to fraction form
    380,610.76/525,235.62 = 210,846.28/x
  3. Step 3: Cross multiply
    380,610.76x = 525,235.62 × 210,846.28
  4. Step 4: Simplify right side
    380,610.76x = 110,743,976,600.49
  5. Step 5: Solve for x
    x = 110,743,976,600.49/380,610.76
  6. Step 6: Final answer
    x = 290,963.86

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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.