Home / 316,915.55-437,344.99-171,721.30

Finding the Fourth Proportional to 316,915.55, 437,344.99 and 171,721.30

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Solution

The fourth proportional to 316,915.55, 437,344.99 and 171,721.30 is: 236,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,915.55 : 437,344.99 = 171,721.30 : x
  2. Step 2: Convert to fraction form
    316,915.55/437,344.99 = 171,721.30/x
  3. Step 3: Cross multiply
    316,915.55x = 437,344.99 × 171,721.30
  4. Step 4: Simplify right side
    316,915.55x = 75,101,450,231.29
  5. Step 5: Solve for x
    x = 75,101,450,231.29/316,915.55
  6. Step 6: Final answer
    x = 236,976.22

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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.