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Finding the Fourth Proportional to 373,345.72, 515,215.02 and 203,576.20

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Solution

The fourth proportional to 373,345.72, 515,215.02 and 203,576.20 is: 280,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,345.72 : 515,215.02 = 203,576.20 : x
  2. Step 2: Convert to fraction form
    373,345.72/515,215.02 = 203,576.20/x
  3. Step 3: Cross multiply
    373,345.72x = 515,215.02 × 203,576.20
  4. Step 4: Simplify right side
    373,345.72x = 104,885,515,954.52
  5. Step 5: Solve for x
    x = 104,885,515,954.52/373,345.72
  6. Step 6: Final answer
    x = 280,934.03

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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.