Home / 355,828.94-490,975.71-202,864.22

Finding the Fourth Proportional to 355,828.94, 490,975.71 and 202,864.22

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Solution

The fourth proportional to 355,828.94, 490,975.71 and 202,864.22 is: 279,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,828.94 : 490,975.71 = 202,864.22 : x
  2. Step 2: Convert to fraction form
    355,828.94/490,975.71 = 202,864.22/x
  3. Step 3: Cross multiply
    355,828.94x = 490,975.71 × 202,864.22
  4. Step 4: Simplify right side
    355,828.94x = 99,601,404,448.10
  5. Step 5: Solve for x
    x = 99,601,404,448.10/355,828.94
  6. Step 6: Final answer
    x = 279,913.73

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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.