Home / 208,136.40-312,204.60-151,711.80

Finding the Fourth Proportional to 208,136.40, 312,204.60 and 151,711.80

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Solution

The fourth proportional to 208,136.40, 312,204.60 and 151,711.80 is: 227,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,136.40 : 312,204.60 = 151,711.80 : x
  2. Step 2: Convert to fraction form
    208,136.40/312,204.60 = 151,711.80/x
  3. Step 3: Cross multiply
    208,136.40x = 312,204.60 × 151,711.80
  4. Step 4: Simplify right side
    208,136.40x = 47,365,121,834.28
  5. Step 5: Solve for x
    x = 47,365,121,834.28/208,136.40
  6. Step 6: Final answer
    x = 227,567.70

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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.