Home / 260,111.72-390,139.22-176,409.56

Finding the Fourth Proportional to 260,111.72, 390,139.22 and 176,409.56

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Solution

The fourth proportional to 260,111.72, 390,139.22 and 176,409.56 is: 264,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,111.72 : 390,139.22 = 176,409.56 : x
  2. Step 2: Convert to fraction form
    260,111.72/390,139.22 = 176,409.56/x
  3. Step 3: Cross multiply
    260,111.72x = 390,139.22 × 176,409.56
  4. Step 4: Simplify right side
    260,111.72x = 68,824,288,138.94
  5. Step 5: Solve for x
    x = 68,824,288,138.94/260,111.72
  6. Step 6: Final answer
    x = 264,595.11

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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.