Home / 317,530.34-438,188.15-172,336.37

Finding the Fourth Proportional to 317,530.34, 438,188.15 and 172,336.37

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Solution

The fourth proportional to 317,530.34, 438,188.15 and 172,336.37 is: 237,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,530.34 : 438,188.15 = 172,336.37 : x
  2. Step 2: Convert to fraction form
    317,530.34/438,188.15 = 172,336.37/x
  3. Step 3: Cross multiply
    317,530.34x = 438,188.15 × 172,336.37
  4. Step 4: Simplify right side
    317,530.34x = 75,515,756,674.33
  5. Step 5: Solve for x
    x = 75,515,756,674.33/317,530.34
  6. Step 6: Final answer
    x = 237,822.18

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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.