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Finding the Fourth Proportional to 375,673.88, 518,428.74 and 203,596.76

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Solution

The fourth proportional to 375,673.88, 518,428.74 and 203,596.76 is: 280,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,673.88 : 518,428.74 = 203,596.76 : x
  2. Step 2: Convert to fraction form
    375,673.88/518,428.74 = 203,596.76/x
  3. Step 3: Cross multiply
    375,673.88x = 518,428.74 × 203,596.76
  4. Step 4: Simplify right side
    375,673.88x = 105,550,411,754.88
  5. Step 5: Solve for x
    x = 105,550,411,754.88/375,673.88
  6. Step 6: Final answer
    x = 280,962.87

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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.