Home / 358,386.45-494,516.64-205,395.18

Finding the Fourth Proportional to 358,386.45, 494,516.64 and 205,395.18

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Solution

The fourth proportional to 358,386.45, 494,516.64 and 205,395.18 is: 283,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,386.45 : 494,516.64 = 205,395.18 : x
  2. Step 2: Convert to fraction form
    358,386.45/494,516.64 = 205,395.18/x
  3. Step 3: Cross multiply
    358,386.45x = 494,516.64 × 205,395.18
  4. Step 4: Simplify right side
    358,386.45x = 101,571,334,285.80
  5. Step 5: Solve for x
    x = 101,571,334,285.80/358,386.45
  6. Step 6: Final answer
    x = 283,412.88

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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.