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Finding the Fourth Proportional to 366,887.31, 505,618.90 and 286,187.01

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Solution

The fourth proportional to 366,887.31, 505,618.90 and 286,187.01 is: 394,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,887.31 : 505,618.90 = 286,187.01 : x
  2. Step 2: Convert to fraction form
    366,887.31/505,618.90 = 286,187.01/x
  3. Step 3: Cross multiply
    366,887.31x = 505,618.90 × 286,187.01
  4. Step 4: Simplify right side
    366,887.31x = 144,701,561,190.49
  5. Step 5: Solve for x
    x = 144,701,561,190.49/366,887.31
  6. Step 6: Final answer
    x = 394,403.29

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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.