Home / 260,430.88-390,685.32-94,257.76

Finding the Fourth Proportional to 260,430.88, 390,685.32 and 94,257.76

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Solution

The fourth proportional to 260,430.88, 390,685.32 and 94,257.76 is: 141,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,430.88 : 390,685.32 = 94,257.76 : x
  2. Step 2: Convert to fraction form
    260,430.88/390,685.32 = 94,257.76/x
  3. Step 3: Cross multiply
    260,430.88x = 390,685.32 × 94,257.76
  4. Step 4: Simplify right side
    260,430.88x = 36,825,120,703.37
  5. Step 5: Solve for x
    x = 36,825,120,703.37/260,430.88
  6. Step 6: Final answer
    x = 141,400.75

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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.