Home / 217,811.68-326,510.16-69,964

Finding the Fourth Proportional to 217,811.68, 326,510.16 and 69,964

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Solution

The fourth proportional to 217,811.68, 326,510.16 and 69,964 is: 104,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,811.68 : 326,510.16 = 69,964 : x
  2. Step 2: Convert to fraction form
    217,811.68/326,510.16 = 69,964/x
  3. Step 3: Cross multiply
    217,811.68x = 326,510.16 × 69,964
  4. Step 4: Simplify right side
    217,811.68x = 22,843,956,834.24
  5. Step 5: Solve for x
    x = 22,843,956,834.24/217,811.68
  6. Step 6: Final answer
    x = 104,879.39

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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.