Home / 219,011.58-328,517.91-61,239.78

Finding the Fourth Proportional to 219,011.58, 328,517.91 and 61,239.78

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Solution

The fourth proportional to 219,011.58, 328,517.91 and 61,239.78 is: 91,859.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,011.58 : 328,517.91 = 61,239.78 : x
  2. Step 2: Convert to fraction form
    219,011.58/328,517.91 = 61,239.78/x
  3. Step 3: Cross multiply
    219,011.58x = 328,517.91 × 61,239.78
  4. Step 4: Simplify right side
    219,011.58x = 20,118,364,534.46
  5. Step 5: Solve for x
    x = 20,118,364,534.46/219,011.58
  6. Step 6: Final answer
    x = 91,859.82

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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.