Home / 230,448.32-318,020.00-128,480.25

Finding the Fourth Proportional to 230,448.32, 318,020.00 and 128,480.25

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Solution

The fourth proportional to 230,448.32, 318,020.00 and 128,480.25 is: 177,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,448.32 : 318,020.00 = 128,480.25 : x
  2. Step 2: Convert to fraction form
    230,448.32/318,020.00 = 128,480.25/x
  3. Step 3: Cross multiply
    230,448.32x = 318,020.00 × 128,480.25
  4. Step 4: Simplify right side
    230,448.32x = 40,859,288,462.60
  5. Step 5: Solve for x
    x = 40,859,288,462.60/230,448.32
  6. Step 6: Final answer
    x = 177,303.48

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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.