Home / 224,389.90-309,627.42-128,896.59

Finding the Fourth Proportional to 224,389.90, 309,627.42 and 128,896.59

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Solution

The fourth proportional to 224,389.90, 309,627.42 and 128,896.59 is: 177,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,389.90 : 309,627.42 = 128,896.59 : x
  2. Step 2: Convert to fraction form
    224,389.90/309,627.42 = 128,896.59/x
  3. Step 3: Cross multiply
    224,389.90x = 309,627.42 × 128,896.59
  4. Step 4: Simplify right side
    224,389.90x = 39,909,918,608.50
  5. Step 5: Solve for x
    x = 39,909,918,608.50/224,389.90
  6. Step 6: Final answer
    x = 177,859.69

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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.