Home / 283,628.59-391,410.14-156,308.83

Finding the Fourth Proportional to 283,628.59, 391,410.14 and 156,308.83

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Solution

The fourth proportional to 283,628.59, 391,410.14 and 156,308.83 is: 215,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,628.59 : 391,410.14 = 156,308.83 : x
  2. Step 2: Convert to fraction form
    283,628.59/391,410.14 = 156,308.83/x
  3. Step 3: Cross multiply
    283,628.59x = 391,410.14 × 156,308.83
  4. Step 4: Simplify right side
    283,628.59x = 61,180,861,033.54
  5. Step 5: Solve for x
    x = 61,180,861,033.54/283,628.59
  6. Step 6: Final answer
    x = 215,707.67

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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.