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Finding the Fourth Proportional to 342,797.62, 473,004.48 and 215,383

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Solution

The fourth proportional to 342,797.62, 473,004.48 and 215,383 is: 297,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,797.62 : 473,004.48 = 215,383 : x
  2. Step 2: Convert to fraction form
    342,797.62/473,004.48 = 215,383/x
  3. Step 3: Cross multiply
    342,797.62x = 473,004.48 × 215,383
  4. Step 4: Simplify right side
    342,797.62x = 101,877,123,915.84
  5. Step 5: Solve for x
    x = 101,877,123,915.84/342,797.62
  6. Step 6: Final answer
    x = 297,193.21

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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.