Home / 290,727.04-401,187.76-163,394.40

Finding the Fourth Proportional to 290,727.04, 401,187.76 and 163,394.40

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Solution

The fourth proportional to 290,727.04, 401,187.76 and 163,394.40 is: 225,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,727.04 : 401,187.76 = 163,394.40 : x
  2. Step 2: Convert to fraction form
    290,727.04/401,187.76 = 163,394.40/x
  3. Step 3: Cross multiply
    290,727.04x = 401,187.76 × 163,394.40
  4. Step 4: Simplify right side
    290,727.04x = 65,551,833,332.54
  5. Step 5: Solve for x
    x = 65,551,833,332.54/290,727.04
  6. Step 6: Final answer
    x = 225,475.53

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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.