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Finding the Fourth Proportional to 373,393.50, 515,262.74 and 212,226.18

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Solution

The fourth proportional to 373,393.50, 515,262.74 and 212,226.18 is: 292,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,393.50 : 515,262.74 = 212,226.18 : x
  2. Step 2: Convert to fraction form
    373,393.50/515,262.74 = 212,226.18/x
  3. Step 3: Cross multiply
    373,393.50x = 515,262.74 × 212,226.18
  4. Step 4: Simplify right side
    373,393.50x = 109,352,243,006.53
  5. Step 5: Solve for x
    x = 109,352,243,006.53/373,393.50
  6. Step 6: Final answer
    x = 292,860.60

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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.