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Finding the Fourth Proportional to 545,879.96, 818,971.85 and 238,158.87

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Solution

The fourth proportional to 545,879.96, 818,971.85 and 238,158.87 is: 357,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,879.96 : 818,971.85 = 238,158.87 : x
  2. Step 2: Convert to fraction form
    545,879.96/818,971.85 = 238,158.87/x
  3. Step 3: Cross multiply
    545,879.96x = 818,971.85 × 238,158.87
  4. Step 4: Simplify right side
    545,879.96x = 195,045,410,953.21
  5. Step 5: Solve for x
    x = 195,045,410,953.21/545,879.96
  6. Step 6: Final answer
    x = 357,304.58

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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.