Home / 278,414.03-384,211.64-151,089.62

Finding the Fourth Proportional to 278,414.03, 384,211.64 and 151,089.62

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Solution

The fourth proportional to 278,414.03, 384,211.64 and 151,089.62 is: 208,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,414.03 : 384,211.64 = 151,089.62 : x
  2. Step 2: Convert to fraction form
    278,414.03/384,211.64 = 151,089.62/x
  3. Step 3: Cross multiply
    278,414.03x = 384,211.64 × 151,089.62
  4. Step 4: Simplify right side
    278,414.03x = 58,050,390,455.15
  5. Step 5: Solve for x
    x = 58,050,390,455.15/278,414.03
  6. Step 6: Final answer
    x = 208,503.83

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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.