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Finding the Fourth Proportional to 251,870.06, 377,804.72 and 172,744.40

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Solution

The fourth proportional to 251,870.06, 377,804.72 and 172,744.40 is: 259,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,870.06 : 377,804.72 = 172,744.40 : x
  2. Step 2: Convert to fraction form
    251,870.06/377,804.72 = 172,744.40/x
  3. Step 3: Cross multiply
    251,870.06x = 377,804.72 × 172,744.40
  4. Step 4: Simplify right side
    251,870.06x = 65,263,649,673.57
  5. Step 5: Solve for x
    x = 65,263,649,673.57/251,870.06
  6. Step 6: Final answer
    x = 259,116.35

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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.