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Finding the Fourth Proportional to 278,303.33, 384,059.70 and 150,979.82

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Solution

The fourth proportional to 278,303.33, 384,059.70 and 150,979.82 is: 208,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,303.33 : 384,059.70 = 150,979.82 : x
  2. Step 2: Convert to fraction form
    278,303.33/384,059.70 = 150,979.82/x
  3. Step 3: Cross multiply
    278,303.33x = 384,059.70 × 150,979.82
  4. Step 4: Simplify right side
    278,303.33x = 57,985,264,375.25
  5. Step 5: Solve for x
    x = 57,985,264,375.25/278,303.33
  6. Step 6: Final answer
    x = 208,352.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.