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Finding the Fourth Proportional to 315,492.26, 435,388.89 and 179,545.74

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Solution

The fourth proportional to 315,492.26, 435,388.89 and 179,545.74 is: 247,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,492.26 : 435,388.89 = 179,545.74 : x
  2. Step 2: Convert to fraction form
    315,492.26/435,388.89 = 179,545.74/x
  3. Step 3: Cross multiply
    315,492.26x = 435,388.89 × 179,545.74
  4. Step 4: Simplify right side
    315,492.26x = 78,172,220,442.83
  5. Step 5: Solve for x
    x = 78,172,220,442.83/315,492.26
  6. Step 6: Final answer
    x = 247,778.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.