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Finding the Fourth Proportional to 297,383.60, 446,032.20 and 86,999.60

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Solution

The fourth proportional to 297,383.60, 446,032.20 and 86,999.60 is: 130,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,383.60 : 446,032.20 = 86,999.60 : x
  2. Step 2: Convert to fraction form
    297,383.60/446,032.20 = 86,999.60/x
  3. Step 3: Cross multiply
    297,383.60x = 446,032.20 × 86,999.60
  4. Step 4: Simplify right side
    297,383.60x = 38,804,622,987.12
  5. Step 5: Solve for x
    x = 38,804,622,987.12/297,383.60
  6. Step 6: Final answer
    x = 130,486.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.