Home / 317,618.82-438,281.73-190,291.14

Finding the Fourth Proportional to 317,618.82, 438,281.73 and 190,291.14

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Solution

The fourth proportional to 317,618.82, 438,281.73 and 190,291.14 is: 262,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,618.82 : 438,281.73 = 190,291.14 : x
  2. Step 2: Convert to fraction form
    317,618.82/438,281.73 = 190,291.14/x
  3. Step 3: Cross multiply
    317,618.82x = 438,281.73 × 190,291.14
  4. Step 4: Simplify right side
    317,618.82x = 83,401,130,042.87
  5. Step 5: Solve for x
    x = 83,401,130,042.87/317,618.82
  6. Step 6: Final answer
    x = 262,582.46

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1.5x scale

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.