Home / 285,822.36-428,738.40-108,412.92

Finding the Fourth Proportional to 285,822.36, 428,738.40 and 108,412.92

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Solution

The fourth proportional to 285,822.36, 428,738.40 and 108,412.92 is: 162,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,822.36 : 428,738.40 = 108,412.92 : x
  2. Step 2: Convert to fraction form
    285,822.36/428,738.40 = 108,412.92/x
  3. Step 3: Cross multiply
    285,822.36x = 428,738.40 × 108,412.92
  4. Step 4: Simplify right side
    285,822.36x = 46,480,781,860.13
  5. Step 5: Solve for x
    x = 46,480,781,860.13/285,822.36
  6. Step 6: Final answer
    x = 162,621.22

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1.5x scale

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.