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Finding the Fourth Proportional to 296,289.63, 408,493.67 and 188,820.45

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Solution

The fourth proportional to 296,289.63, 408,493.67 and 188,820.45 is: 260,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,289.63 : 408,493.67 = 188,820.45 : x
  2. Step 2: Convert to fraction form
    296,289.63/408,493.67 = 188,820.45/x
  3. Step 3: Cross multiply
    296,289.63x = 408,493.67 × 188,820.45
  4. Step 4: Simplify right side
    296,289.63x = 77,131,957,647.45
  5. Step 5: Solve for x
    x = 77,131,957,647.45/296,289.63
  6. Step 6: Final answer
    x = 260,326.21

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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.