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Finding the Fourth Proportional to 208,385.06, 312,541.37 and 58,589.80

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Solution

The fourth proportional to 208,385.06, 312,541.37 and 58,589.80 is: 87,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,385.06 : 312,541.37 = 58,589.80 : x
  2. Step 2: Convert to fraction form
    208,385.06/312,541.37 = 58,589.80/x
  3. Step 3: Cross multiply
    208,385.06x = 312,541.37 × 58,589.80
  4. Step 4: Simplify right side
    208,385.06x = 18,311,736,384.46
  5. Step 5: Solve for x
    x = 18,311,736,384.46/208,385.06
  6. Step 6: Final answer
    x = 87,874.52

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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.