Home / 328,702.14-493,081.36-115,451.52

Finding the Fourth Proportional to 328,702.14, 493,081.36 and 115,451.52

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Solution

The fourth proportional to 328,702.14, 493,081.36 and 115,451.52 is: 173,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,702.14 : 493,081.36 = 115,451.52 : x
  2. Step 2: Convert to fraction form
    328,702.14/493,081.36 = 115,451.52/x
  3. Step 3: Cross multiply
    328,702.14x = 493,081.36 × 115,451.52
  4. Step 4: Simplify right side
    328,702.14x = 56,926,992,495.67
  5. Step 5: Solve for x
    x = 56,926,992,495.67/328,702.14
  6. Step 6: Final answer
    x = 173,187.17

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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.