Home / 283,723.83-391,538.81-156,401.55

Finding the Fourth Proportional to 283,723.83, 391,538.81 and 156,401.55

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Solution

The fourth proportional to 283,723.83, 391,538.81 and 156,401.55 is: 215,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,723.83 : 391,538.81 = 156,401.55 : x
  2. Step 2: Convert to fraction form
    283,723.83/391,538.81 = 156,401.55/x
  3. Step 3: Cross multiply
    283,723.83x = 391,538.81 × 156,401.55
  4. Step 4: Simplify right side
    283,723.83x = 61,237,275,987.15
  5. Step 5: Solve for x
    x = 61,237,275,987.15/283,723.83
  6. Step 6: Final answer
    x = 215,834.09

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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.