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Finding the Fourth Proportional to 361,352.40, 542,028.60 and 347,574.30

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Solution

The fourth proportional to 361,352.40, 542,028.60 and 347,574.30 is: 521,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,352.40 : 542,028.60 = 347,574.30 : x
  2. Step 2: Convert to fraction form
    361,352.40/542,028.60 = 347,574.30/x
  3. Step 3: Cross multiply
    361,352.40x = 542,028.60 × 347,574.30
  4. Step 4: Simplify right side
    361,352.40x = 188,395,211,224.98
  5. Step 5: Solve for x
    x = 188,395,211,224.98/361,352.40
  6. Step 6: Final answer
    x = 521,361.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.