Home / 278,824.68-384,777.30-151,500.72

Finding the Fourth Proportional to 278,824.68, 384,777.30 and 151,500.72

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Solution

The fourth proportional to 278,824.68, 384,777.30 and 151,500.72 is: 209,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,824.68 : 384,777.30 = 151,500.72 : x
  2. Step 2: Convert to fraction form
    278,824.68/384,777.30 = 151,500.72/x
  3. Step 3: Cross multiply
    278,824.68x = 384,777.30 × 151,500.72
  4. Step 4: Simplify right side
    278,824.68x = 58,294,037,989.66
  5. Step 5: Solve for x
    x = 58,294,037,989.66/278,824.68
  6. Step 6: Final answer
    x = 209,070.58

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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.