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Finding the Fourth Proportional to 380,832.98, 525,605.46 and 219,656.54

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Solution

The fourth proportional to 380,832.98, 525,605.46 and 219,656.54 is: 303,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,832.98 : 525,605.46 = 219,656.54 : x
  2. Step 2: Convert to fraction form
    380,832.98/525,605.46 = 219,656.54/x
  3. Step 3: Cross multiply
    380,832.98x = 525,605.46 × 219,656.54
  4. Step 4: Simplify right side
    380,832.98x = 115,452,677,239.01
  5. Step 5: Solve for x
    x = 115,452,677,239.01/380,832.98
  6. Step 6: Final answer
    x = 303,158.30

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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.