Home / 258,835.93-388,073.76-114,663.45

Finding the Fourth Proportional to 258,835.93, 388,073.76 and 114,663.45

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Solution

The fourth proportional to 258,835.93, 388,073.76 and 114,663.45 is: 171,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,835.93 : 388,073.76 = 114,663.45 : x
  2. Step 2: Convert to fraction form
    258,835.93/388,073.76 = 114,663.45/x
  3. Step 3: Cross multiply
    258,835.93x = 388,073.76 × 114,663.45
  4. Step 4: Simplify right side
    258,835.93x = 44,497,876,176.07
  5. Step 5: Solve for x
    x = 44,497,876,176.07/258,835.93
  6. Step 6: Final answer
    x = 171,915.38

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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.