Home / 278,135.70-383,140.18-237,166.39

Finding the Fourth Proportional to 278,135.70, 383,140.18 and 237,166.39

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Solution

The fourth proportional to 278,135.70, 383,140.18 and 237,166.39 is: 326,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,135.70 : 383,140.18 = 237,166.39 : x
  2. Step 2: Convert to fraction form
    278,135.70/383,140.18 = 237,166.39/x
  3. Step 3: Cross multiply
    278,135.70x = 383,140.18 × 237,166.39
  4. Step 4: Simplify right side
    278,135.70x = 90,867,973,354.55
  5. Step 5: Solve for x
    x = 90,867,973,354.55/278,135.70
  6. Step 6: Final answer
    x = 326,703.74

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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.