Home / 219,218.16-328,836.81-69,469.50

Finding the Fourth Proportional to 219,218.16, 328,836.81 and 69,469.50

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Solution

The fourth proportional to 219,218.16, 328,836.81 and 69,469.50 is: 104,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,218.16 : 328,836.81 = 69,469.50 : x
  2. Step 2: Convert to fraction form
    219,218.16/328,836.81 = 69,469.50/x
  3. Step 3: Cross multiply
    219,218.16x = 328,836.81 × 69,469.50
  4. Step 4: Simplify right side
    219,218.16x = 22,844,128,416.24
  5. Step 5: Solve for x
    x = 22,844,128,416.24/219,218.16
  6. Step 6: Final answer
    x = 104,207.28

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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.