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Finding the Fourth Proportional to 373,384.15, 515,300.75 and 212,289.73

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Solution

The fourth proportional to 373,384.15, 515,300.75 and 212,289.73 is: 292,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,384.15 : 515,300.75 = 212,289.73 : x
  2. Step 2: Convert to fraction form
    373,384.15/515,300.75 = 212,289.73/x
  3. Step 3: Cross multiply
    373,384.15x = 515,300.75 × 212,289.73
  4. Step 4: Simplify right side
    373,384.15x = 109,393,057,086.30
  5. Step 5: Solve for x
    x = 109,393,057,086.30/373,384.15
  6. Step 6: Final answer
    x = 292,977.24

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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.