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Finding the Fourth Proportional to 355,037.66, 489,955.86 and 193,897.44

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Solution

The fourth proportional to 355,037.66, 489,955.86 and 193,897.44 is: 267,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,037.66 : 489,955.86 = 193,897.44 : x
  2. Step 2: Convert to fraction form
    355,037.66/489,955.86 = 193,897.44/x
  3. Step 3: Cross multiply
    355,037.66x = 489,955.86 × 193,897.44
  4. Step 4: Simplify right side
    355,037.66x = 95,001,186,967.00
  5. Step 5: Solve for x
    x = 95,001,186,967.00/355,037.66
  6. Step 6: Final answer
    x = 267,580.59

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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.