Home / 313,921.12-433,208.94-170,681.20

Finding the Fourth Proportional to 313,921.12, 433,208.94 and 170,681.20

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Solution

The fourth proportional to 313,921.12, 433,208.94 and 170,681.20 is: 235,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,921.12 : 433,208.94 = 170,681.20 : x
  2. Step 2: Convert to fraction form
    313,921.12/433,208.94 = 170,681.20/x
  3. Step 3: Cross multiply
    313,921.12x = 433,208.94 × 170,681.20
  4. Step 4: Simplify right side
    313,921.12x = 73,940,621,729.93
  5. Step 5: Solve for x
    x = 73,940,621,729.93/313,921.12
  6. Step 6: Final answer
    x = 235,538.86

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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.