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Finding the Fourth Proportional to 248,049, 372,073.52 and 72,945

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Solution

The fourth proportional to 248,049, 372,073.52 and 72,945 is: 109,417.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,049 : 372,073.52 = 72,945 : x
  2. Step 2: Convert to fraction form
    248,049/372,073.52 = 72,945/x
  3. Step 3: Cross multiply
    248,049x = 372,073.52 × 72,945
  4. Step 4: Simplify right side
    248,049x = 27,140,902,916.40
  5. Step 5: Solve for x
    x = 27,140,902,916.40/248,049
  6. Step 6: Final answer
    x = 109,417.51

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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.