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Finding the Fourth Proportional to 375,563.18, 518,271.62 and 203,476.35

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Solution

The fourth proportional to 375,563.18, 518,271.62 and 203,476.35 is: 280,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,563.18 : 518,271.62 = 203,476.35 : x
  2. Step 2: Convert to fraction form
    375,563.18/518,271.62 = 203,476.35/x
  3. Step 3: Cross multiply
    375,563.18x = 518,271.62 × 203,476.35
  4. Step 4: Simplify right side
    375,563.18x = 105,456,018,472.32
  5. Step 5: Solve for x
    x = 105,456,018,472.32/375,563.18
  6. Step 6: Final answer
    x = 280,794.35

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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.