Home / 278,881.02-384,858.24-151,556.60

Finding the Fourth Proportional to 278,881.02, 384,858.24 and 151,556.60

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Solution

The fourth proportional to 278,881.02, 384,858.24 and 151,556.60 is: 209,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,881.02 : 384,858.24 = 151,556.60 : x
  2. Step 2: Convert to fraction form
    278,881.02/384,858.24 = 151,556.60/x
  3. Step 3: Cross multiply
    278,881.02x = 384,858.24 × 151,556.60
  4. Step 4: Simplify right side
    278,881.02x = 58,327,806,336.38
  5. Step 5: Solve for x
    x = 58,327,806,336.38/278,881.02
  6. Step 6: Final answer
    x = 209,149.43

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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.