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Finding the Fourth Proportional to 347,366.40, 479,116.80 and 213,273.60

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Solution

The fourth proportional to 347,366.40, 479,116.80 and 213,273.60 is: 294,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,366.40 : 479,116.80 = 213,273.60 : x
  2. Step 2: Convert to fraction form
    347,366.40/479,116.80 = 213,273.60/x
  3. Step 3: Cross multiply
    347,366.40x = 479,116.80 × 213,273.60
  4. Step 4: Simplify right side
    347,366.40x = 102,182,964,756.48
  5. Step 5: Solve for x
    x = 102,182,964,756.48/347,366.40
  6. Step 6: Final answer
    x = 294,164.79

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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.