Home / 309,254.08-426,760.30-171,427.22

Finding the Fourth Proportional to 309,254.08, 426,760.30 and 171,427.22

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Solution

The fourth proportional to 309,254.08, 426,760.30 and 171,427.22 is: 236,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,254.08 : 426,760.30 = 171,427.22 : x
  2. Step 2: Convert to fraction form
    309,254.08/426,760.30 = 171,427.22/x
  3. Step 3: Cross multiply
    309,254.08x = 426,760.30 × 171,427.22
  4. Step 4: Simplify right side
    309,254.08x = 73,158,331,835.37
  5. Step 5: Solve for x
    x = 73,158,331,835.37/309,254.08
  6. Step 6: Final answer
    x = 236,563.84

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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.