Home / 208,416.58-312,561.03-75,280.42

Finding the Fourth Proportional to 208,416.58, 312,561.03 and 75,280.42

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Solution

The fourth proportional to 208,416.58, 312,561.03 and 75,280.42 is: 112,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,416.58 : 312,561.03 = 75,280.42 : x
  2. Step 2: Convert to fraction form
    208,416.58/312,561.03 = 75,280.42/x
  3. Step 3: Cross multiply
    208,416.58x = 312,561.03 × 75,280.42
  4. Step 4: Simplify right side
    208,416.58x = 23,529,725,614.03
  5. Step 5: Solve for x
    x = 23,529,725,614.03/208,416.58
  6. Step 6: Final answer
    x = 112,897.57

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1.5x scale

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.