Home / 260,261.85-390,424.91-127,041.43

Finding the Fourth Proportional to 260,261.85, 390,424.91 and 127,041.43

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Solution

The fourth proportional to 260,261.85, 390,424.91 and 127,041.43 is: 190,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,261.85 : 390,424.91 = 127,041.43 : x
  2. Step 2: Convert to fraction form
    260,261.85/390,424.91 = 127,041.43/x
  3. Step 3: Cross multiply
    260,261.85x = 390,424.91 × 127,041.43
  4. Step 4: Simplify right side
    260,261.85x = 49,600,137,262.75
  5. Step 5: Solve for x
    x = 49,600,137,262.75/260,261.85
  6. Step 6: Final answer
    x = 190,577.82

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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.