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Finding the Fourth Proportional to 348,171, 480,495.42 and 197,316.60

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Solution

The fourth proportional to 348,171, 480,495.42 and 197,316.60 is: 272,307.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,171 : 480,495.42 = 197,316.60 : x
  2. Step 2: Convert to fraction form
    348,171/480,495.42 = 197,316.60/x
  3. Step 3: Cross multiply
    348,171x = 480,495.42 × 197,316.60
  4. Step 4: Simplify right side
    348,171x = 94,809,722,589.97
  5. Step 5: Solve for x
    x = 94,809,722,589.97/348,171
  6. Step 6: Final answer
    x = 272,307.93

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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.