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Finding the Fourth Proportional to 375,462.52, 518,133.96 and 203,377.20

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Solution

The fourth proportional to 375,462.52, 518,133.96 and 203,377.20 is: 280,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,462.52 : 518,133.96 = 203,377.20 : x
  2. Step 2: Convert to fraction form
    375,462.52/518,133.96 = 203,377.20/x
  3. Step 3: Cross multiply
    375,462.52x = 518,133.96 × 203,377.20
  4. Step 4: Simplify right side
    375,462.52x = 105,376,634,009.71
  5. Step 5: Solve for x
    x = 105,376,634,009.71/375,462.52
  6. Step 6: Final answer
    x = 280,658.20

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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.