Home / 217,547.22-326,559.22-172,855.86

Finding the Fourth Proportional to 217,547.22, 326,559.22 and 172,855.86

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Solution

The fourth proportional to 217,547.22, 326,559.22 and 172,855.86 is: 259,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,547.22 : 326,559.22 = 172,855.86 : x
  2. Step 2: Convert to fraction form
    217,547.22/326,559.22 = 172,855.86/x
  3. Step 3: Cross multiply
    217,547.22x = 326,559.22 × 172,855.86
  4. Step 4: Simplify right side
    217,547.22x = 56,447,674,814.03
  5. Step 5: Solve for x
    x = 56,447,674,814.03/217,547.22
  6. Step 6: Final answer
    x = 259,473.21

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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.