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Finding the Fourth Proportional to 414,447, 621,670.50 and 133,964.25

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Solution

The fourth proportional to 414,447, 621,670.50 and 133,964.25 is: 200,946.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,447 : 621,670.50 = 133,964.25 : x
  2. Step 2: Convert to fraction form
    414,447/621,670.50 = 133,964.25/x
  3. Step 3: Cross multiply
    414,447x = 621,670.50 × 133,964.25
  4. Step 4: Simplify right side
    414,447x = 83,281,622,279.63
  5. Step 5: Solve for x
    x = 83,281,622,279.63/414,447
  6. Step 6: Final answer
    x = 200,946.38

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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.