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Finding the Fourth Proportional to 260,186.77, 390,427.78 and 102,525.94

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Solution

The fourth proportional to 260,186.77, 390,427.78 and 102,525.94 is: 153,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,186.77 : 390,427.78 = 102,525.94 : x
  2. Step 2: Convert to fraction form
    260,186.77/390,427.78 = 102,525.94/x
  3. Step 3: Cross multiply
    260,186.77x = 390,427.78 × 102,525.94
  4. Step 4: Simplify right side
    260,186.77x = 40,028,975,146.61
  5. Step 5: Solve for x
    x = 40,028,975,146.61/260,186.77
  6. Step 6: Final answer
    x = 153,847.08

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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.