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Finding the Fourth Proportional to 255,670.74, 352,837.63 and 142,494.30

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Solution

The fourth proportional to 255,670.74, 352,837.63 and 142,494.30 is: 196,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,670.74 : 352,837.63 = 142,494.30 : x
  2. Step 2: Convert to fraction form
    255,670.74/352,837.63 = 142,494.30/x
  3. Step 3: Cross multiply
    255,670.74x = 352,837.63 × 142,494.30
  4. Step 4: Simplify right side
    255,670.74x = 50,277,351,100.51
  5. Step 5: Solve for x
    x = 50,277,351,100.51/255,670.74
  6. Step 6: Final answer
    x = 196,648.83

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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.