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Finding the Fourth Proportional to 354,823.03, 489,656.24 and 227,498.63

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Solution

The fourth proportional to 354,823.03, 489,656.24 and 227,498.63 is: 313,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,823.03 : 489,656.24 = 227,498.63 : x
  2. Step 2: Convert to fraction form
    354,823.03/489,656.24 = 227,498.63/x
  3. Step 3: Cross multiply
    354,823.03x = 489,656.24 × 227,498.63
  4. Step 4: Simplify right side
    354,823.03x = 111,396,121,038.30
  5. Step 5: Solve for x
    x = 111,396,121,038.30/354,823.03
  6. Step 6: Final answer
    x = 313,948.39

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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.