Home / 385,983.24-579,140.10-161,396.16

Finding the Fourth Proportional to 385,983.24, 579,140.10 and 161,396.16

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Solution

The fourth proportional to 385,983.24, 579,140.10 and 161,396.16 is: 242,163.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,983.24 : 579,140.10 = 161,396.16 : x
  2. Step 2: Convert to fraction form
    385,983.24/579,140.10 = 161,396.16/x
  3. Step 3: Cross multiply
    385,983.24x = 579,140.10 × 161,396.16
  4. Step 4: Simplify right side
    385,983.24x = 93,470,988,242.02
  5. Step 5: Solve for x
    x = 93,470,988,242.02/385,983.24
  6. Step 6: Final answer
    x = 242,163.33

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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.