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Finding the Fourth Proportional to 292,361.58, 438,542.40 and 70,745.58

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Solution

The fourth proportional to 292,361.58, 438,542.40 and 70,745.58 is: 106,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,361.58 : 438,542.40 = 70,745.58 : x
  2. Step 2: Convert to fraction form
    292,361.58/438,542.40 = 70,745.58/x
  3. Step 3: Cross multiply
    292,361.58x = 438,542.40 × 70,745.58
  4. Step 4: Simplify right side
    292,361.58x = 31,024,936,442.59
  5. Step 5: Solve for x
    x = 31,024,936,442.59/292,361.58
  6. Step 6: Final answer
    x = 106,118.38

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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.