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Finding the Fourth Proportional to 376,424.22, 519,506.74 and 215,294.34

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Solution

The fourth proportional to 376,424.22, 519,506.74 and 215,294.34 is: 297,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,424.22 : 519,506.74 = 215,294.34 : x
  2. Step 2: Convert to fraction form
    376,424.22/519,506.74 = 215,294.34/x
  3. Step 3: Cross multiply
    376,424.22x = 519,506.74 × 215,294.34
  4. Step 4: Simplify right side
    376,424.22x = 111,846,860,713.85
  5. Step 5: Solve for x
    x = 111,846,860,713.85/376,424.22
  6. Step 6: Final answer
    x = 297,129.82

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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.