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Finding the Fourth Proportional to 270,669.74, 406,002.78 and 211,555.13

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Solution

The fourth proportional to 270,669.74, 406,002.78 and 211,555.13 is: 317,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,669.74 : 406,002.78 = 211,555.13 : x
  2. Step 2: Convert to fraction form
    270,669.74/406,002.78 = 211,555.13/x
  3. Step 3: Cross multiply
    270,669.74x = 406,002.78 × 211,555.13
  4. Step 4: Simplify right side
    270,669.74x = 85,891,968,873.25
  5. Step 5: Solve for x
    x = 85,891,968,873.25/270,669.74
  6. Step 6: Final answer
    x = 317,331.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.