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Finding the Fourth Proportional to 263,855.66, 364,119.88 and 142,999.90

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Solution

The fourth proportional to 263,855.66, 364,119.88 and 142,999.90 is: 197,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,855.66 : 364,119.88 = 142,999.90 : x
  2. Step 2: Convert to fraction form
    263,855.66/364,119.88 = 142,999.90/x
  3. Step 3: Cross multiply
    263,855.66x = 364,119.88 × 142,999.90
  4. Step 4: Simplify right side
    263,855.66x = 52,069,106,428.01
  5. Step 5: Solve for x
    x = 52,069,106,428.01/263,855.66
  6. Step 6: Final answer
    x = 197,339.36

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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.