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Finding the Fourth Proportional to 373,201.96, 515,000.10 and 212,035.72

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Solution

The fourth proportional to 373,201.96, 515,000.10 and 212,035.72 is: 292,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,201.96 : 515,000.10 = 212,035.72 : x
  2. Step 2: Convert to fraction form
    373,201.96/515,000.10 = 212,035.72/x
  3. Step 3: Cross multiply
    373,201.96x = 515,000.10 × 212,035.72
  4. Step 4: Simplify right side
    373,201.96x = 109,198,417,003.57
  5. Step 5: Solve for x
    x = 109,198,417,003.57/373,201.96
  6. Step 6: Final answer
    x = 292,598.72

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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.