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Finding the Fourth Proportional to 255,409.19, 352,460.37 and 140,698.56

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Solution

The fourth proportional to 255,409.19, 352,460.37 and 140,698.56 is: 194,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,409.19 : 352,460.37 = 140,698.56 : x
  2. Step 2: Convert to fraction form
    255,409.19/352,460.37 = 140,698.56/x
  3. Step 3: Cross multiply
    255,409.19x = 352,460.37 × 140,698.56
  4. Step 4: Simplify right side
    255,409.19x = 49,590,666,516.07
  5. Step 5: Solve for x
    x = 49,590,666,516.07/255,409.19
  6. Step 6: Final answer
    x = 194,161.64

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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.