Home / 290,966.81-401,530.25-163,642.37

Finding the Fourth Proportional to 290,966.81, 401,530.25 and 163,642.37

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Solution

The fourth proportional to 290,966.81, 401,530.25 and 163,642.37 is: 225,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,966.81 : 401,530.25 = 163,642.37 : x
  2. Step 2: Convert to fraction form
    290,966.81/401,530.25 = 163,642.37/x
  3. Step 3: Cross multiply
    290,966.81x = 401,530.25 × 163,642.37
  4. Step 4: Simplify right side
    290,966.81x = 65,707,360,918.48
  5. Step 5: Solve for x
    x = 65,707,360,918.48/290,966.81
  6. Step 6: Final answer
    x = 225,824.25

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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.