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Finding the Fourth Proportional to 347,425, 479,459.46 and 196,518.76

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Solution

The fourth proportional to 347,425, 479,459.46 and 196,518.76 is: 271,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,425 : 479,459.46 = 196,518.76 : x
  2. Step 2: Convert to fraction form
    347,425/479,459.46 = 196,518.76/x
  3. Step 3: Cross multiply
    347,425x = 479,459.46 × 196,518.76
  4. Step 4: Simplify right side
    347,425x = 94,222,778,549.47
  5. Step 5: Solve for x
    x = 94,222,778,549.47/347,425
  6. Step 6: Final answer
    x = 271,203.22

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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.