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Finding the Fourth Proportional to 230,954, 318,717.52 and 124,970

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Solution

The fourth proportional to 230,954, 318,717.52 and 124,970 is: 172,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,954 : 318,717.52 = 124,970 : x
  2. Step 2: Convert to fraction form
    230,954/318,717.52 = 124,970/x
  3. Step 3: Cross multiply
    230,954x = 318,717.52 × 124,970
  4. Step 4: Simplify right side
    230,954x = 39,830,128,474.40
  5. Step 5: Solve for x
    x = 39,830,128,474.40/230,954
  6. Step 6: Final answer
    x = 172,459.14

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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.