Home / 219,498.07-329,021.11-86,324.35

Finding the Fourth Proportional to 219,498.07, 329,021.11 and 86,324.35

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Solution

The fourth proportional to 219,498.07, 329,021.11 and 86,324.35 is: 129,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,498.07 : 329,021.11 = 86,324.35 : x
  2. Step 2: Convert to fraction form
    219,498.07/329,021.11 = 86,324.35/x
  3. Step 3: Cross multiply
    219,498.07x = 329,021.11 × 86,324.35
  4. Step 4: Simplify right side
    219,498.07x = 28,402,533,457.03
  5. Step 5: Solve for x
    x = 28,402,533,457.03/219,498.07
  6. Step 6: Final answer
    x = 129,397.65

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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.