Home / 290,463.07-435,768.53-170,621.36

Finding the Fourth Proportional to 290,463.07, 435,768.53 and 170,621.36

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Solution

The fourth proportional to 290,463.07, 435,768.53 and 170,621.36 is: 255,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,463.07 : 435,768.53 = 170,621.36 : x
  2. Step 2: Convert to fraction form
    290,463.07/435,768.53 = 170,621.36/x
  3. Step 3: Cross multiply
    290,463.07x = 435,768.53 × 170,621.36
  4. Step 4: Simplify right side
    290,463.07x = 74,351,418,380.69
  5. Step 5: Solve for x
    x = 74,351,418,380.69/290,463.07
  6. Step 6: Final answer
    x = 255,975.46

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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.