Home / 219,105.02-328,693.83-76,913.40

Finding the Fourth Proportional to 219,105.02, 328,693.83 and 76,913.40

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Solution

The fourth proportional to 219,105.02, 328,693.83 and 76,913.40 is: 115,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,105.02 : 328,693.83 = 76,913.40 : x
  2. Step 2: Convert to fraction form
    219,105.02/328,693.83 = 76,913.40/x
  3. Step 3: Cross multiply
    219,105.02x = 328,693.83 × 76,913.40
  4. Step 4: Simplify right side
    219,105.02x = 25,280,960,024.32
  5. Step 5: Solve for x
    x = 25,280,960,024.32/219,105.02
  6. Step 6: Final answer
    x = 115,382.85

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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.