Home / 278,923.68-384,913.32-151,599.28

Finding the Fourth Proportional to 278,923.68, 384,913.32 and 151,599.28

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Solution

The fourth proportional to 278,923.68, 384,913.32 and 151,599.28 is: 209,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,923.68 : 384,913.32 = 151,599.28 : x
  2. Step 2: Convert to fraction form
    278,923.68/384,913.32 = 151,599.28/x
  3. Step 3: Cross multiply
    278,923.68x = 384,913.32 × 151,599.28
  4. Step 4: Simplify right side
    278,923.68x = 58,352,582,174.41
  5. Step 5: Solve for x
    x = 58,352,582,174.41/278,923.68
  6. Step 6: Final answer
    x = 209,206.27

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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.