Home / 292,975.28-404,309-172,121.60

Finding the Fourth Proportional to 292,975.28, 404,309 and 172,121.60

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Solution

The fourth proportional to 292,975.28, 404,309 and 172,121.60 is: 237,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,975.28 : 404,309 = 172,121.60 : x
  2. Step 2: Convert to fraction form
    292,975.28/404,309 = 172,121.60/x
  3. Step 3: Cross multiply
    292,975.28x = 404,309 × 172,121.60
  4. Step 4: Simplify right side
    292,975.28x = 69,590,311,974.40
  5. Step 5: Solve for x
    x = 69,590,311,974.40/292,975.28
  6. Step 6: Final answer
    x = 237,529.64

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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.