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Finding the Fourth Proportional to 245,051.80, 367,577.70 and 78,856.60

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Solution

The fourth proportional to 245,051.80, 367,577.70 and 78,856.60 is: 118,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,051.80 : 367,577.70 = 78,856.60 : x
  2. Step 2: Convert to fraction form
    245,051.80/367,577.70 = 78,856.60/x
  3. Step 3: Cross multiply
    245,051.80x = 367,577.70 × 78,856.60
  4. Step 4: Simplify right side
    245,051.80x = 28,985,927,657.82
  5. Step 5: Solve for x
    x = 28,985,927,657.82/245,051.80
  6. Step 6: Final answer
    x = 118,284.90

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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.