Home / 230,367.17-317,932.56-128,401.94

Finding the Fourth Proportional to 230,367.17, 317,932.56 and 128,401.94

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Solution

The fourth proportional to 230,367.17, 317,932.56 and 128,401.94 is: 177,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,367.17 : 317,932.56 = 128,401.94 : x
  2. Step 2: Convert to fraction form
    230,367.17/317,932.56 = 128,401.94/x
  3. Step 3: Cross multiply
    230,367.17x = 317,932.56 × 128,401.94
  4. Step 4: Simplify right side
    230,367.17x = 40,823,155,903.50
  5. Step 5: Solve for x
    x = 40,823,155,903.50/230,367.17
  6. Step 6: Final answer
    x = 177,209.09

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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.