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Finding the Fourth Proportional to 380,788.82, 525,727.86 and 245,059.16

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Solution

The fourth proportional to 380,788.82, 525,727.86 and 245,059.16 is: 338,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,788.82 : 525,727.86 = 245,059.16 : x
  2. Step 2: Convert to fraction form
    380,788.82/525,727.86 = 245,059.16/x
  3. Step 3: Cross multiply
    380,788.82x = 525,727.86 × 245,059.16
  4. Step 4: Simplify right side
    380,788.82x = 128,834,427,760.20
  5. Step 5: Solve for x
    x = 128,834,427,760.20/380,788.82
  6. Step 6: Final answer
    x = 338,335.64

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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.