Home / 218,835.68-328,308.76-61,064

Finding the Fourth Proportional to 218,835.68, 328,308.76 and 61,064

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Solution

The fourth proportional to 218,835.68, 328,308.76 and 61,064 is: 91,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,835.68 : 328,308.76 = 61,064 : x
  2. Step 2: Convert to fraction form
    218,835.68/328,308.76 = 61,064/x
  3. Step 3: Cross multiply
    218,835.68x = 328,308.76 × 61,064
  4. Step 4: Simplify right side
    218,835.68x = 20,047,846,120.64
  5. Step 5: Solve for x
    x = 20,047,846,120.64/218,835.68
  6. Step 6: Final answer
    x = 91,611.41

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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.