Home / 283,911.44-391,815.72-156,587.28

Finding the Fourth Proportional to 283,911.44, 391,815.72 and 156,587.28

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Solution

The fourth proportional to 283,911.44, 391,815.72 and 156,587.28 is: 216,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,911.44 : 391,815.72 = 156,587.28 : x
  2. Step 2: Convert to fraction form
    283,911.44/391,815.72 = 156,587.28/x
  3. Step 3: Cross multiply
    283,911.44x = 391,815.72 × 156,587.28
  4. Step 4: Simplify right side
    283,911.44x = 61,353,357,856.04
  5. Step 5: Solve for x
    x = 61,353,357,856.04/283,911.44
  6. Step 6: Final answer
    x = 216,100.34

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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.