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Finding the Fourth Proportional to 300,438.68, 450,892.86 and 132,075.32

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Solution

The fourth proportional to 300,438.68, 450,892.86 and 132,075.32 is: 198,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,438.68 : 450,892.86 = 132,075.32 : x
  2. Step 2: Convert to fraction form
    300,438.68/450,892.86 = 132,075.32/x
  3. Step 3: Cross multiply
    300,438.68x = 450,892.86 × 132,075.32
  4. Step 4: Simplify right side
    300,438.68x = 59,551,818,770.22
  5. Step 5: Solve for x
    x = 59,551,818,770.22/300,438.68
  6. Step 6: Final answer
    x = 198,216.22

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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.