Home / 290,913.28-401,445.66-163,581.28

Finding the Fourth Proportional to 290,913.28, 401,445.66 and 163,581.28

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Solution

The fourth proportional to 290,913.28, 401,445.66 and 163,581.28 is: 225,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,913.28 : 401,445.66 = 163,581.28 : x
  2. Step 2: Convert to fraction form
    290,913.28/401,445.66 = 163,581.28/x
  3. Step 3: Cross multiply
    290,913.28x = 401,445.66 × 163,581.28
  4. Step 4: Simplify right side
    290,913.28x = 65,668,994,913.24
  5. Step 5: Solve for x
    x = 65,668,994,913.24/290,913.28
  6. Step 6: Final answer
    x = 225,733.92

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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.