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Finding the Fourth Proportional to 373,508.76, 515,436 and 212,360.34

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Solution

The fourth proportional to 373,508.76, 515,436 and 212,360.34 is: 293,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,508.76 : 515,436 = 212,360.34 : x
  2. Step 2: Convert to fraction form
    373,508.76/515,436 = 212,360.34/x
  3. Step 3: Cross multiply
    373,508.76x = 515,436 × 212,360.34
  4. Step 4: Simplify right side
    373,508.76x = 109,458,164,208.24
  5. Step 5: Solve for x
    x = 109,458,164,208.24/373,508.76
  6. Step 6: Final answer
    x = 293,053.81

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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.