Home / 457,180.80-685,771.20-190,852.80

Finding the Fourth Proportional to 457,180.80, 685,771.20 and 190,852.80

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Solution

The fourth proportional to 457,180.80, 685,771.20 and 190,852.80 is: 286,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,180.80 : 685,771.20 = 190,852.80 : x
  2. Step 2: Convert to fraction form
    457,180.80/685,771.20 = 190,852.80/x
  3. Step 3: Cross multiply
    457,180.80x = 685,771.20 × 190,852.80
  4. Step 4: Simplify right side
    457,180.80x = 130,881,353,679.36
  5. Step 5: Solve for x
    x = 130,881,353,679.36/457,180.80
  6. Step 6: Final answer
    x = 286,279.20

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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.