Home / 307,169.21-423,842.12-171,173.35

Finding the Fourth Proportional to 307,169.21, 423,842.12 and 171,173.35

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Solution

The fourth proportional to 307,169.21, 423,842.12 and 171,173.35 is: 236,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,169.21 : 423,842.12 = 171,173.35 : x
  2. Step 2: Convert to fraction form
    307,169.21/423,842.12 = 171,173.35/x
  3. Step 3: Cross multiply
    307,169.21x = 423,842.12 × 171,173.35
  4. Step 4: Simplify right side
    307,169.21x = 72,550,475,867.34
  5. Step 5: Solve for x
    x = 72,550,475,867.34/307,169.21
  6. Step 6: Final answer
    x = 236,190.58

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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.