Home / 328,428.03-492,863.04-115,197.87

Finding the Fourth Proportional to 328,428.03, 492,863.04 and 115,197.87

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Solution

The fourth proportional to 328,428.03, 492,863.04 and 115,197.87 is: 172,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,428.03 : 492,863.04 = 115,197.87 : x
  2. Step 2: Convert to fraction form
    328,428.03/492,863.04 = 115,197.87/x
  3. Step 3: Cross multiply
    328,428.03x = 492,863.04 × 115,197.87
  4. Step 4: Simplify right side
    328,428.03x = 56,776,772,409.72
  5. Step 5: Solve for x
    x = 56,776,772,409.72/328,428.03
  6. Step 6: Final answer
    x = 172,874.32

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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.