Home / 219,918.86-329,878.29-126,364.94

Finding the Fourth Proportional to 219,918.86, 329,878.29 and 126,364.94

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Solution

The fourth proportional to 219,918.86, 329,878.29 and 126,364.94 is: 189,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,918.86 : 329,878.29 = 126,364.94 : x
  2. Step 2: Convert to fraction form
    219,918.86/329,878.29 = 126,364.94/x
  3. Step 3: Cross multiply
    219,918.86x = 329,878.29 × 126,364.94
  4. Step 4: Simplify right side
    219,918.86x = 41,685,050,323.15
  5. Step 5: Solve for x
    x = 41,685,050,323.15/219,918.86
  6. Step 6: Final answer
    x = 189,547.41

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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.