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Finding the Fourth Proportional to 255,841.22, 353,061.72 and 142,671.26

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Solution

The fourth proportional to 255,841.22, 353,061.72 and 142,671.26 is: 196,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,841.22 : 353,061.72 = 142,671.26 : x
  2. Step 2: Convert to fraction form
    255,841.22/353,061.72 = 142,671.26/x
  3. Step 3: Cross multiply
    255,841.22x = 353,061.72 × 142,671.26
  4. Step 4: Simplify right side
    255,841.22x = 50,371,760,450.17
  5. Step 5: Solve for x
    x = 50,371,760,450.17/255,841.22
  6. Step 6: Final answer
    x = 196,886.81

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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.