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Finding the Fourth Proportional to 404,485.20, 558,300.60 and 234,774

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Solution

The fourth proportional to 404,485.20, 558,300.60 and 234,774 is: 324,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,485.20 : 558,300.60 = 234,774 : x
  2. Step 2: Convert to fraction form
    404,485.20/558,300.60 = 234,774/x
  3. Step 3: Cross multiply
    404,485.20x = 558,300.60 × 234,774
  4. Step 4: Simplify right side
    404,485.20x = 131,074,465,064.40
  5. Step 5: Solve for x
    x = 131,074,465,064.40/404,485.20
  6. Step 6: Final answer
    x = 324,052.56

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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.