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Finding the Fourth Proportional to 211,644.88, 292,083.04 and 139,900.48

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Solution

The fourth proportional to 211,644.88, 292,083.04 and 139,900.48 is: 193,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,644.88 : 292,083.04 = 139,900.48 : x
  2. Step 2: Convert to fraction form
    211,644.88/292,083.04 = 139,900.48/x
  3. Step 3: Cross multiply
    211,644.88x = 292,083.04 × 139,900.48
  4. Step 4: Simplify right side
    211,644.88x = 40,862,557,495.86
  5. Step 5: Solve for x
    x = 40,862,557,495.86/211,644.88
  6. Step 6: Final answer
    x = 193,071.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.