Home / 219,021.04-302,249.16-118,418.96

Finding the Fourth Proportional to 219,021.04, 302,249.16 and 118,418.96

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Solution

The fourth proportional to 219,021.04, 302,249.16 and 118,418.96 is: 163,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,021.04 : 302,249.16 = 118,418.96 : x
  2. Step 2: Convert to fraction form
    219,021.04/302,249.16 = 118,418.96/x
  3. Step 3: Cross multiply
    219,021.04x = 302,249.16 × 118,418.96
  4. Step 4: Simplify right side
    219,021.04x = 35,792,031,188.07
  5. Step 5: Solve for x
    x = 35,792,031,188.07/219,021.04
  6. Step 6: Final answer
    x = 163,418.23

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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.