Home / 312,217.23-430,859.03-168,977.37

Finding the Fourth Proportional to 312,217.23, 430,859.03 and 168,977.37

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Solution

The fourth proportional to 312,217.23, 430,859.03 and 168,977.37 is: 233,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,217.23 : 430,859.03 = 168,977.37 : x
  2. Step 2: Convert to fraction form
    312,217.23/430,859.03 = 168,977.37/x
  3. Step 3: Cross multiply
    312,217.23x = 430,859.03 × 168,977.37
  4. Step 4: Simplify right side
    312,217.23x = 72,805,425,730.15
  5. Step 5: Solve for x
    x = 72,805,425,730.15/312,217.23
  6. Step 6: Final answer
    x = 233,188.37

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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.