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Finding the Fourth Proportional to 457,245.69, 685,868.62 and 190,860.89

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Solution

The fourth proportional to 457,245.69, 685,868.62 and 190,860.89 is: 286,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,245.69 : 685,868.62 = 190,860.89 : x
  2. Step 2: Convert to fraction form
    457,245.69/685,868.62 = 190,860.89/x
  3. Step 3: Cross multiply
    457,245.69x = 685,868.62 × 190,860.89
  4. Step 4: Simplify right side
    457,245.69x = 130,905,495,236.27
  5. Step 5: Solve for x
    x = 130,905,495,236.27/457,245.69
  6. Step 6: Final answer
    x = 286,291.37

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1.5x scale

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.