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Finding the Fourth Proportional to 373,637.91, 515,631.66 and 212,516.13

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Solution

The fourth proportional to 373,637.91, 515,631.66 and 212,516.13 is: 293,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,637.91 : 515,631.66 = 212,516.13 : x
  2. Step 2: Convert to fraction form
    373,637.91/515,631.66 = 212,516.13/x
  3. Step 3: Cross multiply
    373,637.91x = 515,631.66 × 212,516.13
  4. Step 4: Simplify right side
    373,637.91x = 109,580,044,888.68
  5. Step 5: Solve for x
    x = 109,580,044,888.68/373,637.91
  6. Step 6: Final answer
    x = 293,278.71

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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.