Home / 290,930.13-401,480.55-163,607.04

Finding the Fourth Proportional to 290,930.13, 401,480.55 and 163,607.04

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Solution

The fourth proportional to 290,930.13, 401,480.55 and 163,607.04 is: 225,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,930.13 : 401,480.55 = 163,607.04 : x
  2. Step 2: Convert to fraction form
    290,930.13/401,480.55 = 163,607.04/x
  3. Step 3: Cross multiply
    290,930.13x = 401,480.55 × 163,607.04
  4. Step 4: Simplify right side
    290,930.13x = 65,685,044,403.07
  5. Step 5: Solve for x
    x = 65,685,044,403.07/290,930.13
  6. Step 6: Final answer
    x = 225,776.01

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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.