Home / 260,190.72-390,297.42-89,529.96

Finding the Fourth Proportional to 260,190.72, 390,297.42 and 89,529.96

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Solution

The fourth proportional to 260,190.72, 390,297.42 and 89,529.96 is: 134,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,190.72 : 390,297.42 = 89,529.96 : x
  2. Step 2: Convert to fraction form
    260,190.72/390,297.42 = 89,529.96/x
  3. Step 3: Cross multiply
    260,190.72x = 390,297.42 × 89,529.96
  4. Step 4: Simplify right side
    260,190.72x = 34,943,312,400.70
  5. Step 5: Solve for x
    x = 34,943,312,400.70/260,190.72
  6. Step 6: Final answer
    x = 134,298.84

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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.