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Finding the Fourth Proportional to 380,863.79, 525,759.45 and 266,591.22

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Solution

The fourth proportional to 380,863.79, 525,759.45 and 266,591.22 is: 368,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,863.79 : 525,759.45 = 266,591.22 : x
  2. Step 2: Convert to fraction form
    380,863.79/525,759.45 = 266,591.22/x
  3. Step 3: Cross multiply
    380,863.79x = 525,759.45 × 266,591.22
  4. Step 4: Simplify right side
    380,863.79x = 140,162,853,202.03
  5. Step 5: Solve for x
    x = 140,162,853,202.03/380,863.79
  6. Step 6: Final answer
    x = 368,013.08

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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.