Home / 317,835.20-438,429.31-190,436.98

Finding the Fourth Proportional to 317,835.20, 438,429.31 and 190,436.98

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Solution

The fourth proportional to 317,835.20, 438,429.31 and 190,436.98 is: 262,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,835.20 : 438,429.31 = 190,436.98 : x
  2. Step 2: Convert to fraction form
    317,835.20/438,429.31 = 190,436.98/x
  3. Step 3: Cross multiply
    317,835.20x = 438,429.31 × 190,436.98
  4. Step 4: Simplify right side
    317,835.20x = 83,493,150,595.55
  5. Step 5: Solve for x
    x = 83,493,150,595.55/317,835.20
  6. Step 6: Final answer
    x = 262,693.22

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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.