Home / 314,619.39-434,172.52-171,379.43

Finding the Fourth Proportional to 314,619.39, 434,172.52 and 171,379.43

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Solution

The fourth proportional to 314,619.39, 434,172.52 and 171,379.43 is: 236,502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,619.39 : 434,172.52 = 171,379.43 : x
  2. Step 2: Convert to fraction form
    314,619.39/434,172.52 = 171,379.43/x
  3. Step 3: Cross multiply
    314,619.39x = 434,172.52 × 171,379.43
  4. Step 4: Simplify right side
    314,619.39x = 74,408,236,828.40
  5. Step 5: Solve for x
    x = 74,408,236,828.40/314,619.39
  6. Step 6: Final answer
    x = 236,502.39

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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.