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Finding the Fourth Proportional to 366,888.31, 505,620.28 and 286,188.01

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Solution

The fourth proportional to 366,888.31, 505,620.28 and 286,188.01 is: 394,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,888.31 : 505,620.28 = 286,188.01 : x
  2. Step 2: Convert to fraction form
    366,888.31/505,620.28 = 286,188.01/x
  3. Step 3: Cross multiply
    366,888.31x = 505,620.28 × 286,188.01
  4. Step 4: Simplify right side
    366,888.31x = 144,702,461,748.84
  5. Step 5: Solve for x
    x = 144,702,461,748.84/366,888.31
  6. Step 6: Final answer
    x = 394,404.67

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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.