Home / 283,815.81-391,645.74-156,488.67

Finding the Fourth Proportional to 283,815.81, 391,645.74 and 156,488.67

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Solution

The fourth proportional to 283,815.81, 391,645.74 and 156,488.67 is: 215,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,815.81 : 391,645.74 = 156,488.67 : x
  2. Step 2: Convert to fraction form
    283,815.81/391,645.74 = 156,488.67/x
  3. Step 3: Cross multiply
    283,815.81x = 391,645.74 × 156,488.67
  4. Step 4: Simplify right side
    283,815.81x = 61,288,120,963.77
  5. Step 5: Solve for x
    x = 61,288,120,963.77/283,815.81
  6. Step 6: Final answer
    x = 215,943.29

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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.