Home / 278,882.60-384,860.97-151,558.19

Finding the Fourth Proportional to 278,882.60, 384,860.97 and 151,558.19

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Solution

The fourth proportional to 278,882.60, 384,860.97 and 151,558.19 is: 209,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,882.60 : 384,860.97 = 151,558.19 : x
  2. Step 2: Convert to fraction form
    278,882.60/384,860.97 = 151,558.19/x
  3. Step 3: Cross multiply
    278,882.60x = 384,860.97 × 151,558.19
  4. Step 4: Simplify right side
    278,882.60x = 58,328,831,533.77
  5. Step 5: Solve for x
    x = 58,328,831,533.77/278,882.60
  6. Step 6: Final answer
    x = 209,151.92

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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.