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Finding the Fourth Proportional to 404,455.50, 606,754.44 and 138,153.60

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Solution

The fourth proportional to 404,455.50, 606,754.44 and 138,153.60 is: 207,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,455.50 : 606,754.44 = 138,153.60 : x
  2. Step 2: Convert to fraction form
    404,455.50/606,754.44 = 138,153.60/x
  3. Step 3: Cross multiply
    404,455.50x = 606,754.44 × 138,153.60
  4. Step 4: Simplify right side
    404,455.50x = 83,825,310,201.98
  5. Step 5: Solve for x
    x = 83,825,310,201.98/404,455.50
  6. Step 6: Final answer
    x = 207,254.72

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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.