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Finding the Fourth Proportional to 307,170.80, 423,866.04 and 184,698.80

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Solution

The fourth proportional to 307,170.80, 423,866.04 and 184,698.80 is: 254,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,170.80 : 423,866.04 = 184,698.80 : x
  2. Step 2: Convert to fraction form
    307,170.80/423,866.04 = 184,698.80/x
  3. Step 3: Cross multiply
    307,170.80x = 423,866.04 × 184,698.80
  4. Step 4: Simplify right side
    307,170.80x = 78,287,548,948.75
  5. Step 5: Solve for x
    x = 78,287,548,948.75/307,170.80
  6. Step 6: Final answer
    x = 254,866.51

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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.