Home / 219,002.20-328,503.30-52,790.20

Finding the Fourth Proportional to 219,002.20, 328,503.30 and 52,790.20

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Solution

The fourth proportional to 219,002.20, 328,503.30 and 52,790.20 is: 79,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,002.20 : 328,503.30 = 52,790.20 : x
  2. Step 2: Convert to fraction form
    219,002.20/328,503.30 = 52,790.20/x
  3. Step 3: Cross multiply
    219,002.20x = 328,503.30 × 52,790.20
  4. Step 4: Simplify right side
    219,002.20x = 17,341,754,907.66
  5. Step 5: Solve for x
    x = 17,341,754,907.66/219,002.20
  6. Step 6: Final answer
    x = 79,185.30

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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.