Home / 288,865.37-433,400.62-128,926.75

Finding the Fourth Proportional to 288,865.37, 433,400.62 and 128,926.75

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Solution

The fourth proportional to 288,865.37, 433,400.62 and 128,926.75 is: 193,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,865.37 : 433,400.62 = 128,926.75 : x
  2. Step 2: Convert to fraction form
    288,865.37/433,400.62 = 128,926.75/x
  3. Step 3: Cross multiply
    288,865.37x = 433,400.62 × 128,926.75
  4. Step 4: Simplify right side
    288,865.37x = 55,876,932,739.95
  5. Step 5: Solve for x
    x = 55,876,932,739.95/288,865.37
  6. Step 6: Final answer
    x = 193,435.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.