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Finding the Fourth Proportional to 380,662.50, 525,331.47 and 210,896.63

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Solution

The fourth proportional to 380,662.50, 525,331.47 and 210,896.63 is: 291,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,662.50 : 525,331.47 = 210,896.63 : x
  2. Step 2: Convert to fraction form
    380,662.50/525,331.47 = 210,896.63/x
  3. Step 3: Cross multiply
    380,662.50x = 525,331.47 × 210,896.63
  4. Step 4: Simplify right side
    380,662.50x = 110,790,634,029.29
  5. Step 5: Solve for x
    x = 110,790,634,029.29/380,662.50
  6. Step 6: Final answer
    x = 291,046.88

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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.