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Finding the Fourth Proportional to 260,451.53, 390,692.41 and 100,528.37

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Solution

The fourth proportional to 260,451.53, 390,692.41 and 100,528.37 is: 150,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,451.53 : 390,692.41 = 100,528.37 : x
  2. Step 2: Convert to fraction form
    260,451.53/390,692.41 = 100,528.37/x
  3. Step 3: Cross multiply
    260,451.53x = 390,692.41 × 100,528.37
  4. Step 4: Simplify right side
    260,451.53x = 39,275,669,875.63
  5. Step 5: Solve for x
    x = 39,275,669,875.63/260,451.53
  6. Step 6: Final answer
    x = 150,798.39

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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.