Home / 283,132.16-390,736.64-162,287.36

Finding the Fourth Proportional to 283,132.16, 390,736.64 and 162,287.36

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Solution

The fourth proportional to 283,132.16, 390,736.64 and 162,287.36 is: 223,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,132.16 : 390,736.64 = 162,287.36 : x
  2. Step 2: Convert to fraction form
    283,132.16/390,736.64 = 162,287.36/x
  3. Step 3: Cross multiply
    283,132.16x = 390,736.64 × 162,287.36
  4. Step 4: Simplify right side
    283,132.16x = 63,411,617,760.87
  5. Step 5: Solve for x
    x = 63,411,617,760.87/283,132.16
  6. Step 6: Final answer
    x = 223,964.73

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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.