Home / 352,719.36-486,486-245,235.60

Finding the Fourth Proportional to 352,719.36, 486,486 and 245,235.60

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Solution

The fourth proportional to 352,719.36, 486,486 and 245,235.60 is: 338,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,719.36 : 486,486 = 245,235.60 : x
  2. Step 2: Convert to fraction form
    352,719.36/486,486 = 245,235.60/x
  3. Step 3: Cross multiply
    352,719.36x = 486,486 × 245,235.60
  4. Step 4: Simplify right side
    352,719.36x = 119,303,686,101.60
  5. Step 5: Solve for x
    x = 119,303,686,101.60/352,719.36
  6. Step 6: Final answer
    x = 338,239.69

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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.