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Finding the Fourth Proportional to 222,328.56, 333,672.66 and 172,290

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Solution

The fourth proportional to 222,328.56, 333,672.66 and 172,290 is: 258,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,328.56 : 333,672.66 = 172,290 : x
  2. Step 2: Convert to fraction form
    222,328.56/333,672.66 = 172,290/x
  3. Step 3: Cross multiply
    222,328.56x = 333,672.66 × 172,290
  4. Step 4: Simplify right side
    222,328.56x = 57,488,462,591.40
  5. Step 5: Solve for x
    x = 57,488,462,591.40/222,328.56
  6. Step 6: Final answer
    x = 258,574.35

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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.