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Finding the Fourth Proportional to 317,881.36, 438,674.44 and 174,638.32

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Solution

The fourth proportional to 317,881.36, 438,674.44 and 174,638.32 is: 240,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,881.36 : 438,674.44 = 174,638.32 : x
  2. Step 2: Convert to fraction form
    317,881.36/438,674.44 = 174,638.32/x
  3. Step 3: Cross multiply
    317,881.36x = 438,674.44 × 174,638.32
  4. Step 4: Simplify right side
    317,881.36x = 76,609,367,228.54
  5. Step 5: Solve for x
    x = 76,609,367,228.54/317,881.36
  6. Step 6: Final answer
    x = 240,999.87

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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.