Home / 307,021.06-423,720.08-171,077.14

Finding the Fourth Proportional to 307,021.06, 423,720.08 and 171,077.14

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Solution

The fourth proportional to 307,021.06, 423,720.08 and 171,077.14 is: 236,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,021.06 : 423,720.08 = 171,077.14 : x
  2. Step 2: Convert to fraction form
    307,021.06/423,720.08 = 171,077.14/x
  3. Step 3: Cross multiply
    307,021.06x = 423,720.08 × 171,077.14
  4. Step 4: Simplify right side
    307,021.06x = 72,488,819,446.97
  5. Step 5: Solve for x
    x = 72,488,819,446.97/307,021.06
  6. Step 6: Final answer
    x = 236,103.74

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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.