Home / 284,495.07-392,608.83-155,441.55

Finding the Fourth Proportional to 284,495.07, 392,608.83 and 155,441.55

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Solution

The fourth proportional to 284,495.07, 392,608.83 and 155,441.55 is: 214,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,495.07 : 392,608.83 = 155,441.55 : x
  2. Step 2: Convert to fraction form
    284,495.07/392,608.83 = 155,441.55/x
  3. Step 3: Cross multiply
    284,495.07x = 392,608.83 × 155,441.55
  4. Step 4: Simplify right side
    284,495.07x = 61,027,725,078.89
  5. Step 5: Solve for x
    x = 61,027,725,078.89/284,495.07
  6. Step 6: Final answer
    x = 214,512.42

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1.5x scale

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.