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Finding the Fourth Proportional to 290,330.54, 400,653.15 and 163,003.18

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Solution

The fourth proportional to 290,330.54, 400,653.15 and 163,003.18 is: 224,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,330.54 : 400,653.15 = 163,003.18 : x
  2. Step 2: Convert to fraction form
    290,330.54/400,653.15 = 163,003.18/x
  3. Step 3: Cross multiply
    290,330.54x = 400,653.15 × 163,003.18
  4. Step 4: Simplify right side
    290,330.54x = 65,307,737,527.02
  5. Step 5: Solve for x
    x = 65,307,737,527.02/290,330.54
  6. Step 6: Final answer
    x = 224,942.71

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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.