Home / 399,147.63-550,823.72-272,045.26

Finding the Fourth Proportional to 399,147.63, 550,823.72 and 272,045.26

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Solution

The fourth proportional to 399,147.63, 550,823.72 and 272,045.26 is: 375,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,147.63 : 550,823.72 = 272,045.26 : x
  2. Step 2: Convert to fraction form
    399,147.63/550,823.72 = 272,045.26/x
  3. Step 3: Cross multiply
    399,147.63x = 550,823.72 × 272,045.26
  4. Step 4: Simplify right side
    399,147.63x = 149,848,982,121.57
  5. Step 5: Solve for x
    x = 149,848,982,121.57/399,147.63
  6. Step 6: Final answer
    x = 375,422.45

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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.