Home / 353,022.09-487,168.20-202,148.25

Finding the Fourth Proportional to 353,022.09, 487,168.20 and 202,148.25

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Solution

The fourth proportional to 353,022.09, 487,168.20 and 202,148.25 is: 278,963.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,022.09 : 487,168.20 = 202,148.25 : x
  2. Step 2: Convert to fraction form
    353,022.09/487,168.20 = 202,148.25/x
  3. Step 3: Cross multiply
    353,022.09x = 487,168.20 × 202,148.25
  4. Step 4: Simplify right side
    353,022.09x = 98,480,199,085.65
  5. Step 5: Solve for x
    x = 98,480,199,085.65/353,022.09
  6. Step 6: Final answer
    x = 278,963.28

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1.5x scale

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.