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Finding the Fourth Proportional to 290,955.95, 401,516.58 and 163,628.81

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Solution

The fourth proportional to 290,955.95, 401,516.58 and 163,628.81 is: 225,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,955.95 : 401,516.58 = 163,628.81 : x
  2. Step 2: Convert to fraction form
    290,955.95/401,516.58 = 163,628.81/x
  3. Step 3: Cross multiply
    290,955.95x = 401,516.58 × 163,628.81
  4. Step 4: Simplify right side
    290,955.95x = 65,699,677,354.94
  5. Step 5: Solve for x
    x = 65,699,677,354.94/290,955.95
  6. Step 6: Final answer
    x = 225,806.27

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1.5x scale

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.