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Finding the Fourth Proportional to 255,479.67, 352,570.34 and 140,763.02

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Solution

The fourth proportional to 255,479.67, 352,570.34 and 140,763.02 is: 194,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,479.67 : 352,570.34 = 140,763.02 : x
  2. Step 2: Convert to fraction form
    255,479.67/352,570.34 = 140,763.02/x
  3. Step 3: Cross multiply
    255,479.67x = 352,570.34 × 140,763.02
  4. Step 4: Simplify right side
    255,479.67x = 49,628,864,409.88
  5. Step 5: Solve for x
    x = 49,628,864,409.88/255,479.67
  6. Step 6: Final answer
    x = 194,257.59

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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.