Home / 283,618.08-391,410.36-156,293.64

Finding the Fourth Proportional to 283,618.08, 391,410.36 and 156,293.64

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Solution

The fourth proportional to 283,618.08, 391,410.36 and 156,293.64 is: 215,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,618.08 : 391,410.36 = 156,293.64 : x
  2. Step 2: Convert to fraction form
    283,618.08/391,410.36 = 156,293.64/x
  3. Step 3: Cross multiply
    283,618.08x = 391,410.36 × 156,293.64
  4. Step 4: Simplify right side
    283,618.08x = 61,174,949,898.11
  5. Step 5: Solve for x
    x = 61,174,949,898.11/283,618.08
  6. Step 6: Final answer
    x = 215,694.82

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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.