Home / 391,465.08-540,196.23-230,288.97

Finding the Fourth Proportional to 391,465.08, 540,196.23 and 230,288.97

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Solution

The fourth proportional to 391,465.08, 540,196.23 and 230,288.97 is: 317,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,465.08 : 540,196.23 = 230,288.97 : x
  2. Step 2: Convert to fraction form
    391,465.08/540,196.23 = 230,288.97/x
  3. Step 3: Cross multiply
    391,465.08x = 540,196.23 × 230,288.97
  4. Step 4: Simplify right side
    391,465.08x = 124,401,233,404.58
  5. Step 5: Solve for x
    x = 124,401,233,404.58/391,465.08
  6. Step 6: Final answer
    x = 317,783.73

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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.