Home / 260,137.76-390,027.34-102,384.32

Finding the Fourth Proportional to 260,137.76, 390,027.34 and 102,384.32

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Solution

The fourth proportional to 260,137.76, 390,027.34 and 102,384.32 is: 153,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,137.76 : 390,027.34 = 102,384.32 : x
  2. Step 2: Convert to fraction form
    260,137.76/390,027.34 = 102,384.32/x
  3. Step 3: Cross multiply
    260,137.76x = 390,027.34 × 102,384.32
  4. Step 4: Simplify right side
    260,137.76x = 39,932,683,987.31
  5. Step 5: Solve for x
    x = 39,932,683,987.31/260,137.76
  6. Step 6: Final answer
    x = 153,505.91

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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.