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Finding the Fourth Proportional to 354,884.70, 489,748.30 and 193,746.54

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Solution

The fourth proportional to 354,884.70, 489,748.30 and 193,746.54 is: 267,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,884.70 : 489,748.30 = 193,746.54 : x
  2. Step 2: Convert to fraction form
    354,884.70/489,748.30 = 193,746.54/x
  3. Step 3: Cross multiply
    354,884.70x = 489,748.30 × 193,746.54
  4. Step 4: Simplify right side
    354,884.70x = 94,887,038,111.52
  5. Step 5: Solve for x
    x = 94,887,038,111.52/354,884.70
  6. Step 6: Final answer
    x = 267,374.27

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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.