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Finding the Fourth Proportional to 457,170.52, 685,820.08 and 190,870.46

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Solution

The fourth proportional to 457,170.52, 685,820.08 and 190,870.46 is: 286,332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,170.52 : 685,820.08 = 190,870.46 : x
  2. Step 2: Convert to fraction form
    457,170.52/685,820.08 = 190,870.46/x
  3. Step 3: Cross multiply
    457,170.52x = 685,820.08 × 190,870.46
  4. Step 4: Simplify right side
    457,170.52x = 130,902,794,146.84
  5. Step 5: Solve for x
    x = 130,902,794,146.84/457,170.52
  6. Step 6: Final answer
    x = 286,332.54

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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.