Home / 397,864.36-549,077.70-219,016.36

Finding the Fourth Proportional to 397,864.36, 549,077.70 and 219,016.36

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Solution

The fourth proportional to 397,864.36, 549,077.70 and 219,016.36 is: 302,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,864.36 : 549,077.70 = 219,016.36 : x
  2. Step 2: Convert to fraction form
    397,864.36/549,077.70 = 219,016.36/x
  3. Step 3: Cross multiply
    397,864.36x = 549,077.70 × 219,016.36
  4. Step 4: Simplify right side
    397,864.36x = 120,256,999,211.17
  5. Step 5: Solve for x
    x = 120,256,999,211.17/397,864.36
  6. Step 6: Final answer
    x = 302,256.27

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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.