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Finding the Fourth Proportional to 362,908.20, 543,779.10 and 303,421.80

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Solution

The fourth proportional to 362,908.20, 543,779.10 and 303,421.80 is: 454,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,908.20 : 543,779.10 = 303,421.80 : x
  2. Step 2: Convert to fraction form
    362,908.20/543,779.10 = 303,421.80/x
  3. Step 3: Cross multiply
    362,908.20x = 543,779.10 × 303,421.80
  4. Step 4: Simplify right side
    362,908.20x = 164,994,433,324.38
  5. Step 5: Solve for x
    x = 164,994,433,324.38/362,908.20
  6. Step 6: Final answer
    x = 454,645.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.