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Finding the Fourth Proportional to 348,170, 480,494.04 and 197,315.60

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Solution

The fourth proportional to 348,170, 480,494.04 and 197,315.60 is: 272,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,170 : 480,494.04 = 197,315.60 : x
  2. Step 2: Convert to fraction form
    348,170/480,494.04 = 197,315.60/x
  3. Step 3: Cross multiply
    348,170x = 480,494.04 × 197,315.60
  4. Step 4: Simplify right side
    348,170x = 94,808,969,799.02
  5. Step 5: Solve for x
    x = 94,808,969,799.02/348,170
  6. Step 6: Final answer
    x = 272,306.55

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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.