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Finding the Fourth Proportional to 170,488.79, 255,401.03 and 103,763.42

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Solution

The fourth proportional to 170,488.79, 255,401.03 and 103,763.42 is: 155,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,488.79 : 255,401.03 = 103,763.42 : x
  2. Step 2: Convert to fraction form
    170,488.79/255,401.03 = 103,763.42/x
  3. Step 3: Cross multiply
    170,488.79x = 255,401.03 × 103,763.42
  4. Step 4: Simplify right side
    170,488.79x = 26,501,283,187.00
  5. Step 5: Solve for x
    x = 26,501,283,187.00/170,488.79
  6. Step 6: Final answer
    x = 155,442.97

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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.