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Finding the Fourth Proportional to 235,762.34, 325,359.38 and 128,339.54

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Solution

The fourth proportional to 235,762.34, 325,359.38 and 128,339.54 is: 177,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,762.34 : 325,359.38 = 128,339.54 : x
  2. Step 2: Convert to fraction form
    235,762.34/325,359.38 = 128,339.54/x
  3. Step 3: Cross multiply
    235,762.34x = 325,359.38 × 128,339.54
  4. Step 4: Simplify right side
    235,762.34x = 41,756,470,895.39
  5. Step 5: Solve for x
    x = 41,756,470,895.39/235,762.34
  6. Step 6: Final answer
    x = 177,112.56

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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.