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Finding the Fourth Proportional to 373,547.70, 515,540.03 and 212,426.96

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Solution

The fourth proportional to 373,547.70, 515,540.03 and 212,426.96 is: 293,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,547.70 : 515,540.03 = 212,426.96 : x
  2. Step 2: Convert to fraction form
    373,547.70/515,540.03 = 212,426.96/x
  3. Step 3: Cross multiply
    373,547.70x = 515,540.03 × 212,426.96
  4. Step 4: Simplify right side
    373,547.70x = 109,514,597,691.37
  5. Step 5: Solve for x
    x = 109,514,597,691.37/373,547.70
  6. Step 6: Final answer
    x = 293,174.33

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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.