Home / 389,054.04-536,898.66-219,288.17

Finding the Fourth Proportional to 389,054.04, 536,898.66 and 219,288.17

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Solution

The fourth proportional to 389,054.04, 536,898.66 and 219,288.17 is: 302,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,054.04 : 536,898.66 = 219,288.17 : x
  2. Step 2: Convert to fraction form
    389,054.04/536,898.66 = 219,288.17/x
  3. Step 3: Cross multiply
    389,054.04x = 536,898.66 × 219,288.17
  4. Step 4: Simplify right side
    389,054.04x = 117,735,524,626.85
  5. Step 5: Solve for x
    x = 117,735,524,626.85/389,054.04
  6. Step 6: Final answer
    x = 302,619.98

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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.