Home / 230,185.28-317,632.98-128,207.32

Finding the Fourth Proportional to 230,185.28, 317,632.98 and 128,207.32

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Solution

The fourth proportional to 230,185.28, 317,632.98 and 128,207.32 is: 176,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,185.28 : 317,632.98 = 128,207.32 : x
  2. Step 2: Convert to fraction form
    230,185.28/317,632.98 = 128,207.32/x
  3. Step 3: Cross multiply
    230,185.28x = 317,632.98 × 128,207.32
  4. Step 4: Simplify right side
    230,185.28x = 40,722,873,109.41
  5. Step 5: Solve for x
    x = 40,722,873,109.41/230,185.28
  6. Step 6: Final answer
    x = 176,913.45

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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.