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Finding the Fourth Proportional to 286,840.44, 395,842.14 and 159,513.30

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Solution

The fourth proportional to 286,840.44, 395,842.14 and 159,513.30 is: 220,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,840.44 : 395,842.14 = 159,513.30 : x
  2. Step 2: Convert to fraction form
    286,840.44/395,842.14 = 159,513.30/x
  3. Step 3: Cross multiply
    286,840.44x = 395,842.14 × 159,513.30
  4. Step 4: Simplify right side
    286,840.44x = 63,142,086,030.46
  5. Step 5: Solve for x
    x = 63,142,086,030.46/286,840.44
  6. Step 6: Final answer
    x = 220,129.65

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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.