Home / 284,609.09-392,761.77-155,550.17

Finding the Fourth Proportional to 284,609.09, 392,761.77 and 155,550.17

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Solution

The fourth proportional to 284,609.09, 392,761.77 and 155,550.17 is: 214,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,609.09 : 392,761.77 = 155,550.17 : x
  2. Step 2: Convert to fraction form
    284,609.09/392,761.77 = 155,550.17/x
  3. Step 3: Cross multiply
    284,609.09x = 392,761.77 × 155,550.17
  4. Step 4: Simplify right side
    284,609.09x = 61,094,160,093.00
  5. Step 5: Solve for x
    x = 61,094,160,093.00/284,609.09
  6. Step 6: Final answer
    x = 214,659.90

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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.