Home / 278,667.18-384,561.81-151,344.90

Finding the Fourth Proportional to 278,667.18, 384,561.81 and 151,344.90

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Solution

The fourth proportional to 278,667.18, 384,561.81 and 151,344.90 is: 208,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,667.18 : 384,561.81 = 151,344.90 : x
  2. Step 2: Convert to fraction form
    278,667.18/384,561.81 = 151,344.90/x
  3. Step 3: Cross multiply
    278,667.18x = 384,561.81 × 151,344.90
  4. Step 4: Simplify right side
    278,667.18x = 58,201,468,678.27
  5. Step 5: Solve for x
    x = 58,201,468,678.27/278,667.18
  6. Step 6: Final answer
    x = 208,856.56

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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.