Home / 309,112.41-426,582.14-173,156.34

Finding the Fourth Proportional to 309,112.41, 426,582.14 and 173,156.34

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Solution

The fourth proportional to 309,112.41, 426,582.14 and 173,156.34 is: 238,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,112.41 : 426,582.14 = 173,156.34 : x
  2. Step 2: Convert to fraction form
    309,112.41/426,582.14 = 173,156.34/x
  3. Step 3: Cross multiply
    309,112.41x = 426,582.14 × 173,156.34
  4. Step 4: Simplify right side
    309,112.41x = 73,865,401,205.99
  5. Step 5: Solve for x
    x = 73,865,401,205.99/309,112.41
  6. Step 6: Final answer
    x = 238,959.68

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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.