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Finding the Fourth Proportional to 373,421.98, 515,233.74 and 212,264.38

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Solution

The fourth proportional to 373,421.98, 515,233.74 and 212,264.38 is: 292,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,421.98 : 515,233.74 = 212,264.38 : x
  2. Step 2: Convert to fraction form
    373,421.98/515,233.74 = 212,264.38/x
  3. Step 3: Cross multiply
    373,421.98x = 515,233.74 × 212,264.38
  4. Step 4: Simplify right side
    373,421.98x = 109,365,770,376.18
  5. Step 5: Solve for x
    x = 109,365,770,376.18/373,421.98
  6. Step 6: Final answer
    x = 292,874.49

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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.