Home / 253,066.45-349,005.37-209,977.60

Finding the Fourth Proportional to 253,066.45, 349,005.37 and 209,977.60

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Solution

The fourth proportional to 253,066.45, 349,005.37 and 209,977.60 is: 289,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,066.45 : 349,005.37 = 209,977.60 : x
  2. Step 2: Convert to fraction form
    253,066.45/349,005.37 = 209,977.60/x
  3. Step 3: Cross multiply
    253,066.45x = 349,005.37 × 209,977.60
  4. Step 4: Simplify right side
    253,066.45x = 73,283,309,979.71
  5. Step 5: Solve for x
    x = 73,283,309,979.71/253,066.45
  6. Step 6: Final answer
    x = 289,581.29

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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.