Home / 317,621.31-474,147.27-272,153.07

Finding the Fourth Proportional to 317,621.31, 474,147.27 and 272,153.07

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Solution

The fourth proportional to 317,621.31, 474,147.27 and 272,153.07 is: 406,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,621.31 : 474,147.27 = 272,153.07 : x
  2. Step 2: Convert to fraction form
    317,621.31/474,147.27 = 272,153.07/x
  3. Step 3: Cross multiply
    317,621.31x = 474,147.27 × 272,153.07
  4. Step 4: Simplify right side
    317,621.31x = 129,040,635,162.62
  5. Step 5: Solve for x
    x = 129,040,635,162.62/317,621.31
  6. Step 6: Final answer
    x = 406,271.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.