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Finding the Fourth Proportional to 380,625.54, 525,224.97 and 210,827.94

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Solution

The fourth proportional to 380,625.54, 525,224.97 and 210,827.94 is: 290,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,625.54 : 525,224.97 = 210,827.94 : x
  2. Step 2: Convert to fraction form
    380,625.54/525,224.97 = 210,827.94/x
  3. Step 3: Cross multiply
    380,625.54x = 525,224.97 × 210,827.94
  4. Step 4: Simplify right side
    380,625.54x = 110,732,098,461.66
  5. Step 5: Solve for x
    x = 110,732,098,461.66/380,625.54
  6. Step 6: Final answer
    x = 290,921.36

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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.