Home / 317,040.40-437,502.18-189,786.16

Finding the Fourth Proportional to 317,040.40, 437,502.18 and 189,786.16

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Solution

The fourth proportional to 317,040.40, 437,502.18 and 189,786.16 is: 261,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,040.40 : 437,502.18 = 189,786.16 : x
  2. Step 2: Convert to fraction form
    317,040.40/437,502.18 = 189,786.16/x
  3. Step 3: Cross multiply
    317,040.40x = 437,502.18 × 189,786.16
  4. Step 4: Simplify right side
    317,040.40x = 83,031,858,733.83
  5. Step 5: Solve for x
    x = 83,031,858,733.83/317,040.40
  6. Step 6: Final answer
    x = 261,896.78

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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.