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Finding the Fourth Proportional to 292,512.25, 438,768.38 and 70,896.25

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Solution

The fourth proportional to 292,512.25, 438,768.38 and 70,896.25 is: 106,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,512.25 : 438,768.38 = 70,896.25 : x
  2. Step 2: Convert to fraction form
    292,512.25/438,768.38 = 70,896.25/x
  3. Step 3: Cross multiply
    292,512.25x = 438,768.38 × 70,896.25
  4. Step 4: Simplify right side
    292,512.25x = 31,107,032,760.58
  5. Step 5: Solve for x
    x = 31,107,032,760.58/292,512.25
  6. Step 6: Final answer
    x = 106,344.38

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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.