Home / 290,213.04-400,511.76-162,888.60

Finding the Fourth Proportional to 290,213.04, 400,511.76 and 162,888.60

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Solution

The fourth proportional to 290,213.04, 400,511.76 and 162,888.60 is: 224,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,213.04 : 400,511.76 = 162,888.60 : x
  2. Step 2: Convert to fraction form
    290,213.04/400,511.76 = 162,888.60/x
  3. Step 3: Cross multiply
    290,213.04x = 400,511.76 × 162,888.60
  4. Step 4: Simplify right side
    290,213.04x = 65,238,799,869.94
  5. Step 5: Solve for x
    x = 65,238,799,869.94/290,213.04
  6. Step 6: Final answer
    x = 224,796.24

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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.