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Finding the Fourth Proportional to 208,485.87, 312,748.29 and 58,725.92

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Solution

The fourth proportional to 208,485.87, 312,748.29 and 58,725.92 is: 88,094.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,485.87 : 312,748.29 = 58,725.92 : x
  2. Step 2: Convert to fraction form
    208,485.87/312,748.29 = 58,725.92/x
  3. Step 3: Cross multiply
    208,485.87x = 312,748.29 × 58,725.92
  4. Step 4: Simplify right side
    208,485.87x = 18,366,432,280.35
  5. Step 5: Solve for x
    x = 18,366,432,280.35/208,485.87
  6. Step 6: Final answer
    x = 88,094.37

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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.