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Finding the Fourth Proportional to 380,808.28, 525,754.25 and 245,077.93

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Solution

The fourth proportional to 380,808.28, 525,754.25 and 245,077.93 is: 338,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,808.28 : 525,754.25 = 245,077.93 : x
  2. Step 2: Convert to fraction form
    380,808.28/525,754.25 = 245,077.93/x
  3. Step 3: Cross multiply
    380,808.28x = 525,754.25 × 245,077.93
  4. Step 4: Simplify right side
    380,808.28x = 128,850,763,278.70
  5. Step 5: Solve for x
    x = 128,850,763,278.70/380,808.28
  6. Step 6: Final answer
    x = 338,361.24

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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.