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Finding the Fourth Proportional to 380,671.21, 525,088.41 and 244,882

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Solution

The fourth proportional to 380,671.21, 525,088.41 and 244,882 is: 337,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,671.21 : 525,088.41 = 244,882 : x
  2. Step 2: Convert to fraction form
    380,671.21/525,088.41 = 244,882/x
  3. Step 3: Cross multiply
    380,671.21x = 525,088.41 × 244,882
  4. Step 4: Simplify right side
    380,671.21x = 128,584,700,017.62
  5. Step 5: Solve for x
    x = 128,584,700,017.62/380,671.21
  6. Step 6: Final answer
    x = 337,784.15

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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.