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Finding the Fourth Proportional to 245,182.50, 367,773.75 and 78,970.50

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Solution

The fourth proportional to 245,182.50, 367,773.75 and 78,970.50 is: 118,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,182.50 : 367,773.75 = 78,970.50 : x
  2. Step 2: Convert to fraction form
    245,182.50/367,773.75 = 78,970.50/x
  3. Step 3: Cross multiply
    245,182.50x = 367,773.75 × 78,970.50
  4. Step 4: Simplify right side
    245,182.50x = 29,043,276,924.38
  5. Step 5: Solve for x
    x = 29,043,276,924.38/245,182.50
  6. Step 6: Final answer
    x = 118,455.75

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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.