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Finding the Fourth Proportional to 376,021.01, 518,907.50 and 203,938.28

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Solution

The fourth proportional to 376,021.01, 518,907.50 and 203,938.28 is: 281,434.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,021.01 : 518,907.50 = 203,938.28 : x
  2. Step 2: Convert to fraction form
    376,021.01/518,907.50 = 203,938.28/x
  3. Step 3: Cross multiply
    376,021.01x = 518,907.50 × 203,938.28
  4. Step 4: Simplify right side
    376,021.01x = 105,825,103,154.79
  5. Step 5: Solve for x
    x = 105,825,103,154.79/376,021.01
  6. Step 6: Final answer
    x = 281,434.02

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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.