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Finding the Fourth Proportional to 353,304.63, 529,289.40 and 208,779.36

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Solution

The fourth proportional to 353,304.63, 529,289.40 and 208,779.36 is: 312,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,304.63 : 529,289.40 = 208,779.36 : x
  2. Step 2: Convert to fraction form
    353,304.63/529,289.40 = 208,779.36/x
  3. Step 3: Cross multiply
    353,304.63x = 529,289.40 × 208,779.36
  4. Step 4: Simplify right side
    353,304.63x = 110,504,702,186.78
  5. Step 5: Solve for x
    x = 110,504,702,186.78/353,304.63
  6. Step 6: Final answer
    x = 312,774.57

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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.