Home / 209,279.56-311,947.86-192,483.40

Finding the Fourth Proportional to 209,279.56, 311,947.86 and 192,483.40

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Solution

The fourth proportional to 209,279.56, 311,947.86 and 192,483.40 is: 286,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279.56 : 311,947.86 = 192,483.40 : x
  2. Step 2: Convert to fraction form
    209,279.56/311,947.86 = 192,483.40/x
  3. Step 3: Cross multiply
    209,279.56x = 311,947.86 × 192,483.40
  4. Step 4: Simplify right side
    209,279.56x = 60,044,784,715.52
  5. Step 5: Solve for x
    x = 60,044,784,715.52/209,279.56
  6. Step 6: Final answer
    x = 286,911.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.