Home / 509,326.08-763,514.28-172,130.96

Finding the Fourth Proportional to 509,326.08, 763,514.28 and 172,130.96

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Solution

The fourth proportional to 509,326.08, 763,514.28 and 172,130.96 is: 258,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,326.08 : 763,514.28 = 172,130.96 : x
  2. Step 2: Convert to fraction form
    509,326.08/763,514.28 = 172,130.96/x
  3. Step 3: Cross multiply
    509,326.08x = 763,514.28 × 172,130.96
  4. Step 4: Simplify right side
    509,326.08x = 131,424,442,172.54
  5. Step 5: Solve for x
    x = 131,424,442,172.54/509,326.08
  6. Step 6: Final answer
    x = 258,035.96

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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.