Home / 373,213.50-515,034.78-212,068.74

Finding the Fourth Proportional to 373,213.50, 515,034.78 and 212,068.74

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Solution

The fourth proportional to 373,213.50, 515,034.78 and 212,068.74 is: 292,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,213.50 : 515,034.78 = 212,068.74 : x
  2. Step 2: Convert to fraction form
    373,213.50/515,034.78 = 212,068.74/x
  3. Step 3: Cross multiply
    373,213.50x = 515,034.78 × 212,068.74
  4. Step 4: Simplify right side
    373,213.50x = 109,222,776,850.78
  5. Step 5: Solve for x
    x = 109,222,776,850.78/373,213.50
  6. Step 6: Final answer
    x = 292,654.95

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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.