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Finding the Fourth Proportional to 259,885.79, 358,638.52 and 145,166.03

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Solution

The fourth proportional to 259,885.79, 358,638.52 and 145,166.03 is: 200,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,885.79 : 358,638.52 = 145,166.03 : x
  2. Step 2: Convert to fraction form
    259,885.79/358,638.52 = 145,166.03/x
  3. Step 3: Cross multiply
    259,885.79x = 358,638.52 × 145,166.03
  4. Step 4: Simplify right side
    259,885.79x = 52,062,130,153.48
  5. Step 5: Solve for x
    x = 52,062,130,153.48/259,885.79
  6. Step 6: Final answer
    x = 200,326.96

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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.