Home / 457,031.03-685,610.33-190,730.50

Finding the Fourth Proportional to 457,031.03, 685,610.33 and 190,730.50

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Solution

The fourth proportional to 457,031.03, 685,610.33 and 190,730.50 is: 286,122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,031.03 : 685,610.33 = 190,730.50 : x
  2. Step 2: Convert to fraction form
    457,031.03/685,610.33 = 190,730.50/x
  3. Step 3: Cross multiply
    457,031.03x = 685,610.33 × 190,730.50
  4. Step 4: Simplify right side
    457,031.03x = 130,766,798,378.39
  5. Step 5: Solve for x
    x = 130,766,798,378.39/457,031.03
  6. Step 6: Final answer
    x = 286,122.37

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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.