Home / 219,315.90-328,536.45-125,712.30

Finding the Fourth Proportional to 219,315.90, 328,536.45 and 125,712.30

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Solution

The fourth proportional to 219,315.90, 328,536.45 and 125,712.30 is: 188,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,315.90 : 328,536.45 = 125,712.30 : x
  2. Step 2: Convert to fraction form
    219,315.90/328,536.45 = 125,712.30/x
  3. Step 3: Cross multiply
    219,315.90x = 328,536.45 × 125,712.30
  4. Step 4: Simplify right side
    219,315.90x = 41,301,072,763.34
  5. Step 5: Solve for x
    x = 41,301,072,763.34/219,315.90
  6. Step 6: Final answer
    x = 188,317.73

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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.