Home / 389,054.54-536,899.36-219,288.66

Finding the Fourth Proportional to 389,054.54, 536,899.36 and 219,288.66

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Solution

The fourth proportional to 389,054.54, 536,899.36 and 219,288.66 is: 302,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,054.54 : 536,899.36 = 219,288.66 : x
  2. Step 2: Convert to fraction form
    389,054.54/536,899.36 = 219,288.66/x
  3. Step 3: Cross multiply
    389,054.54x = 536,899.36 × 219,288.66
  4. Step 4: Simplify right side
    389,054.54x = 117,735,941,209.26
  5. Step 5: Solve for x
    x = 117,735,941,209.26/389,054.54
  6. Step 6: Final answer
    x = 302,620.66

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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.