Home / 317,384.12-438,003.78-190,035.38

Finding the Fourth Proportional to 317,384.12, 438,003.78 and 190,035.38

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Solution

The fourth proportional to 317,384.12, 438,003.78 and 190,035.38 is: 262,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,384.12 : 438,003.78 = 190,035.38 : x
  2. Step 2: Convert to fraction form
    317,384.12/438,003.78 = 190,035.38/x
  3. Step 3: Cross multiply
    317,384.12x = 438,003.78 × 190,035.38
  4. Step 4: Simplify right side
    317,384.12x = 83,236,214,773.74
  5. Step 5: Solve for x
    x = 83,236,214,773.74/317,384.12
  6. Step 6: Final answer
    x = 262,257.02

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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.