Home / 307,075.85-423,760.34-171,115.53

Finding the Fourth Proportional to 307,075.85, 423,760.34 and 171,115.53

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Solution

The fourth proportional to 307,075.85, 423,760.34 and 171,115.53 is: 236,137.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,075.85 : 423,760.34 = 171,115.53 : x
  2. Step 2: Convert to fraction form
    307,075.85/423,760.34 = 171,115.53/x
  3. Step 3: Cross multiply
    307,075.85x = 423,760.34 × 171,115.53
  4. Step 4: Simplify right side
    307,075.85x = 72,511,975,172.08
  5. Step 5: Solve for x
    x = 72,511,975,172.08/307,075.85
  6. Step 6: Final answer
    x = 236,137.02

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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.