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Finding the Fourth Proportional to 373,450.42, 515,359.15 and 212,305.51

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Solution

The fourth proportional to 373,450.42, 515,359.15 and 212,305.51 is: 292,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,450.42 : 515,359.15 = 212,305.51 : x
  2. Step 2: Convert to fraction form
    373,450.42/515,359.15 = 212,305.51/x
  3. Step 3: Cross multiply
    373,450.42x = 515,359.15 × 212,305.51
  4. Step 4: Simplify right side
    373,450.42x = 109,413,587,173.92
  5. Step 5: Solve for x
    x = 109,413,587,173.92/373,450.42
  6. Step 6: Final answer
    x = 292,980.22

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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.