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Finding the Fourth Proportional to 307,424.75, 424,246.16 and 166,112.75

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Solution

The fourth proportional to 307,424.75, 424,246.16 and 166,112.75 is: 229,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,424.75 : 424,246.16 = 166,112.75 : x
  2. Step 2: Convert to fraction form
    307,424.75/424,246.16 = 166,112.75/x
  3. Step 3: Cross multiply
    307,424.75x = 424,246.16 × 166,112.75
  4. Step 4: Simplify right side
    307,424.75x = 70,472,696,314.54
  5. Step 5: Solve for x
    x = 70,472,696,314.54/307,424.75
  6. Step 6: Final answer
    x = 229,235.60

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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.