Home / 319,730.88-441,360-218,091.84

Finding the Fourth Proportional to 319,730.88, 441,360 and 218,091.84

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Solution

The fourth proportional to 319,730.88, 441,360 and 218,091.84 is: 301,056.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,730.88 : 441,360 = 218,091.84 : x
  2. Step 2: Convert to fraction form
    319,730.88/441,360 = 218,091.84/x
  3. Step 3: Cross multiply
    319,730.88x = 441,360 × 218,091.84
  4. Step 4: Simplify right side
    319,730.88x = 96,257,014,502.40
  5. Step 5: Solve for x
    x = 96,257,014,502.40/319,730.88
  6. Step 6: Final answer
    x = 301,056.36

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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.