Home / 307,113.28-423,816.74-171,144.25

Finding the Fourth Proportional to 307,113.28, 423,816.74 and 171,144.25

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Solution

The fourth proportional to 307,113.28, 423,816.74 and 171,144.25 is: 236,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,113.28 : 423,816.74 = 171,144.25 : x
  2. Step 2: Convert to fraction form
    307,113.28/423,816.74 = 171,144.25/x
  3. Step 3: Cross multiply
    307,113.28x = 423,816.74 × 171,144.25
  4. Step 4: Simplify right side
    307,113.28x = 72,533,798,104.75
  5. Step 5: Solve for x
    x = 72,533,798,104.75/307,113.28
  6. Step 6: Final answer
    x = 236,179.30

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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.