Home / 309,390.64-426,933-171,573.52

Finding the Fourth Proportional to 309,390.64, 426,933 and 171,573.52

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Solution

The fourth proportional to 309,390.64, 426,933 and 171,573.52 is: 236,756.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,390.64 : 426,933 = 171,573.52 : x
  2. Step 2: Convert to fraction form
    309,390.64/426,933 = 171,573.52/x
  3. Step 3: Cross multiply
    309,390.64x = 426,933 × 171,573.52
  4. Step 4: Simplify right side
    309,390.64x = 73,250,397,614.16
  5. Step 5: Solve for x
    x = 73,250,397,614.16/309,390.64
  6. Step 6: Final answer
    x = 236,756.99

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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.