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Finding the Fourth Proportional to 375,883.34, 518,217.17 and 298,615.34

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Solution

The fourth proportional to 375,883.34, 518,217.17 and 298,615.34 is: 411,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,883.34 : 518,217.17 = 298,615.34 : x
  2. Step 2: Convert to fraction form
    375,883.34/518,217.17 = 298,615.34/x
  3. Step 3: Cross multiply
    375,883.34x = 518,217.17 × 298,615.34
  4. Step 4: Simplify right side
    375,883.34x = 154,747,592,329.23
  5. Step 5: Solve for x
    x = 154,747,592,329.23/375,883.34
  6. Step 6: Final answer
    x = 411,690.48

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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.