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Finding the Fourth Proportional to 315,045.45, 434,763.45 and 179,080.29

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Solution

The fourth proportional to 315,045.45, 434,763.45 and 179,080.29 is: 247,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,045.45 : 434,763.45 = 179,080.29 : x
  2. Step 2: Convert to fraction form
    315,045.45/434,763.45 = 179,080.29/x
  3. Step 3: Cross multiply
    315,045.45x = 434,763.45 × 179,080.29
  4. Step 4: Simplify right side
    315,045.45x = 77,857,564,707.40
  5. Step 5: Solve for x
    x = 77,857,564,707.40/315,045.45
  6. Step 6: Final answer
    x = 247,131.21

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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.