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Finding the Fourth Proportional to 357,457.27, 536,185.56 and 91,217.78

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Solution

The fourth proportional to 357,457.27, 536,185.56 and 91,217.78 is: 136,826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,457.27 : 536,185.56 = 91,217.78 : x
  2. Step 2: Convert to fraction form
    357,457.27/536,185.56 = 91,217.78/x
  3. Step 3: Cross multiply
    357,457.27x = 536,185.56 × 91,217.78
  4. Step 4: Simplify right side
    357,457.27x = 48,909,656,451.26
  5. Step 5: Solve for x
    x = 48,909,656,451.26/357,457.27
  6. Step 6: Final answer
    x = 136,826.58

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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.