Home / 505,170.57-757,099.76-205,302.20

Finding the Fourth Proportional to 505,170.57, 757,099.76 and 205,302.20

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Solution

The fourth proportional to 505,170.57, 757,099.76 and 205,302.20 is: 307,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,170.57 : 757,099.76 = 205,302.20 : x
  2. Step 2: Convert to fraction form
    505,170.57/757,099.76 = 205,302.20/x
  3. Step 3: Cross multiply
    505,170.57x = 757,099.76 × 205,302.20
  4. Step 4: Simplify right side
    505,170.57x = 155,434,242,690.29
  5. Step 5: Solve for x
    x = 155,434,242,690.29/505,170.57
  6. Step 6: Final answer
    x = 307,686.65

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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.