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Finding the Fourth Proportional to 314,922.40, 472,383.60 and 303,112.60

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Solution

The fourth proportional to 314,922.40, 472,383.60 and 303,112.60 is: 454,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,922.40 : 472,383.60 = 303,112.60 : x
  2. Step 2: Convert to fraction form
    314,922.40/472,383.60 = 303,112.60/x
  3. Step 3: Cross multiply
    314,922.40x = 472,383.60 × 303,112.60
  4. Step 4: Simplify right side
    314,922.40x = 143,185,421,193.36
  5. Step 5: Solve for x
    x = 143,185,421,193.36/314,922.40
  6. Step 6: Final answer
    x = 454,668.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.