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Finding the Fourth Proportional to 290,275.49, 400,578.59 and 162,951.05

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Solution

The fourth proportional to 290,275.49, 400,578.59 and 162,951.05 is: 224,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,275.49 : 400,578.59 = 162,951.05 : x
  2. Step 2: Convert to fraction form
    290,275.49/400,578.59 = 162,951.05/x
  3. Step 3: Cross multiply
    290,275.49x = 400,578.59 × 162,951.05
  4. Step 4: Simplify right side
    290,275.49x = 65,274,699,030.37
  5. Step 5: Solve for x
    x = 65,274,699,030.37/290,275.49
  6. Step 6: Final answer
    x = 224,871.55

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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.