Home / 307,139.24-423,886.57-171,185.60

Finding the Fourth Proportional to 307,139.24, 423,886.57 and 171,185.60

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Solution

The fourth proportional to 307,139.24, 423,886.57 and 171,185.60 is: 236,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,139.24 : 423,886.57 = 171,185.60 : x
  2. Step 2: Convert to fraction form
    307,139.24/423,886.57 = 171,185.60/x
  3. Step 3: Cross multiply
    307,139.24x = 423,886.57 × 171,185.60
  4. Step 4: Simplify right side
    307,139.24x = 72,563,277,449.14
  5. Step 5: Solve for x
    x = 72,563,277,449.14/307,139.24
  6. Step 6: Final answer
    x = 236,255.31

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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.