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Finding the Fourth Proportional to 352,602.69, 485,779.65 and 243,602.61

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Solution

The fourth proportional to 352,602.69, 485,779.65 and 243,602.61 is: 335,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,602.69 : 485,779.65 = 243,602.61 : x
  2. Step 2: Convert to fraction form
    352,602.69/485,779.65 = 243,602.61/x
  3. Step 3: Cross multiply
    352,602.69x = 485,779.65 × 243,602.61
  4. Step 4: Simplify right side
    352,602.69x = 118,337,190,624.89
  5. Step 5: Solve for x
    x = 118,337,190,624.89/352,602.69
  6. Step 6: Final answer
    x = 335,610.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.