Home / 317,800.20-438,567.44-172,608.81

Finding the Fourth Proportional to 317,800.20, 438,567.44 and 172,608.81

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Solution

The fourth proportional to 317,800.20, 438,567.44 and 172,608.81 is: 238,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,800.20 : 438,567.44 = 172,608.81 : x
  2. Step 2: Convert to fraction form
    317,800.20/438,567.44 = 172,608.81/x
  3. Step 3: Cross multiply
    317,800.20x = 438,567.44 × 172,608.81
  4. Step 4: Simplify right side
    317,800.20x = 75,700,603,060.10
  5. Step 5: Solve for x
    x = 75,700,603,060.10/317,800.20
  6. Step 6: Final answer
    x = 238,201.87

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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.