Home / 219,005.16-328,048.23-139,001.97

Finding the Fourth Proportional to 219,005.16, 328,048.23 and 139,001.97

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Solution

The fourth proportional to 219,005.16, 328,048.23 and 139,001.97 is: 208,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,005.16 : 328,048.23 = 139,001.97 : x
  2. Step 2: Convert to fraction form
    219,005.16/328,048.23 = 139,001.97/x
  3. Step 3: Cross multiply
    219,005.16x = 328,048.23 × 139,001.97
  4. Step 4: Simplify right side
    219,005.16x = 45,599,350,225.01
  5. Step 5: Solve for x
    x = 45,599,350,225.01/219,005.16
  6. Step 6: Final answer
    x = 208,211.31

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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.