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Finding the Fourth Proportional to 245,182, 367,773 and 78,970

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Solution

The fourth proportional to 245,182, 367,773 and 78,970 is: 118,455

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,182 : 367,773 = 78,970 : x
  2. Step 2: Convert to fraction form
    245,182/367,773 = 78,970/x
  3. Step 3: Cross multiply
    245,182x = 367,773 × 78,970
  4. Step 4: Simplify right side
    245,182x = 29,043,033,810
  5. Step 5: Solve for x
    x = 29,043,033,810/245,182
  6. Step 6: Final answer
    x = 118,455

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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.