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Finding the Fourth Proportional to 380,523.11, 525,092.97 and 210,753.59

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Solution

The fourth proportional to 380,523.11, 525,092.97 and 210,753.59 is: 290,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,523.11 : 525,092.97 = 210,753.59 : x
  2. Step 2: Convert to fraction form
    380,523.11/525,092.97 = 210,753.59/x
  3. Step 3: Cross multiply
    380,523.11x = 525,092.97 × 210,753.59
  4. Step 4: Simplify right side
    380,523.11x = 110,665,225,885.80
  5. Step 5: Solve for x
    x = 110,665,225,885.80/380,523.11
  6. Step 6: Final answer
    x = 290,823.93

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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.