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Finding the Fourth Proportional to 355,034.51, 489,951.52 and 193,894.30

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Solution

The fourth proportional to 355,034.51, 489,951.52 and 193,894.30 is: 267,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,034.51 : 489,951.52 = 193,894.30 : x
  2. Step 2: Convert to fraction form
    355,034.51/489,951.52 = 193,894.30/x
  3. Step 3: Cross multiply
    355,034.51x = 489,951.52 × 193,894.30
  4. Step 4: Simplify right side
    355,034.51x = 94,998,807,004.34
  5. Step 5: Solve for x
    x = 94,998,807,004.34/355,034.51
  6. Step 6: Final answer
    x = 267,576.26

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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.