Home / 290,789.13-401,284.89-163,464.96

Finding the Fourth Proportional to 290,789.13, 401,284.89 and 163,464.96

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Solution

The fourth proportional to 290,789.13, 401,284.89 and 163,464.96 is: 225,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,789.13 : 401,284.89 = 163,464.96 : x
  2. Step 2: Convert to fraction form
    290,789.13/401,284.89 = 163,464.96/x
  3. Step 3: Cross multiply
    290,789.13x = 401,284.89 × 163,464.96
  4. Step 4: Simplify right side
    290,789.13x = 65,596,018,492.45
  5. Step 5: Solve for x
    x = 65,596,018,492.45/290,789.13
  6. Step 6: Final answer
    x = 225,579.33

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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.