Home / 283,828.78-391,682.55-156,506.50

Finding the Fourth Proportional to 283,828.78, 391,682.55 and 156,506.50

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Solution

The fourth proportional to 283,828.78, 391,682.55 and 156,506.50 is: 215,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,828.78 : 391,682.55 = 156,506.50 : x
  2. Step 2: Convert to fraction form
    283,828.78/391,682.55 = 156,506.50/x
  3. Step 3: Cross multiply
    283,828.78x = 391,682.55 × 156,506.50
  4. Step 4: Simplify right side
    283,828.78x = 61,300,865,011.58
  5. Step 5: Solve for x
    x = 61,300,865,011.58/283,828.78
  6. Step 6: Final answer
    x = 215,978.33

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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.