Home / 210,513.20-290,422.19-155,454.44

Finding the Fourth Proportional to 210,513.20, 290,422.19 and 155,454.44

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Solution

The fourth proportional to 210,513.20, 290,422.19 and 155,454.44 is: 214,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,513.20 : 290,422.19 = 155,454.44 : x
  2. Step 2: Convert to fraction form
    210,513.20/290,422.19 = 155,454.44/x
  3. Step 3: Cross multiply
    210,513.20x = 290,422.19 × 155,454.44
  4. Step 4: Simplify right side
    210,513.20x = 45,147,416,680.64
  5. Step 5: Solve for x
    x = 45,147,416,680.64/210,513.20
  6. Step 6: Final answer
    x = 214,463.60

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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.