Home / 293,577.60-440,366.40-71,961.60

Finding the Fourth Proportional to 293,577.60, 440,366.40 and 71,961.60

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Solution

The fourth proportional to 293,577.60, 440,366.40 and 71,961.60 is: 107,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,577.60 : 440,366.40 = 71,961.60 : x
  2. Step 2: Convert to fraction form
    293,577.60/440,366.40 = 71,961.60/x
  3. Step 3: Cross multiply
    293,577.60x = 440,366.40 × 71,961.60
  4. Step 4: Simplify right side
    293,577.60x = 31,689,470,730.24
  5. Step 5: Solve for x
    x = 31,689,470,730.24/293,577.60
  6. Step 6: Final answer
    x = 107,942.40

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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.