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Finding the Fourth Proportional to 276,367.70, 413,567.40 and 191,730.80

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Solution

The fourth proportional to 276,367.70, 413,567.40 and 191,730.80 is: 286,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,367.70 : 413,567.40 = 191,730.80 : x
  2. Step 2: Convert to fraction form
    276,367.70/413,567.40 = 191,730.80/x
  3. Step 3: Cross multiply
    276,367.70x = 413,567.40 × 191,730.80
  4. Step 4: Simplify right side
    276,367.70x = 79,293,608,455.92
  5. Step 5: Solve for x
    x = 79,293,608,455.92/276,367.70
  6. Step 6: Final answer
    x = 286,913.44

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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.