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Finding the Fourth Proportional to 315,946.91, 435,900.34 and 179,884.63

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Solution

The fourth proportional to 315,946.91, 435,900.34 and 179,884.63 is: 248,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,946.91 : 435,900.34 = 179,884.63 : x
  2. Step 2: Convert to fraction form
    315,946.91/435,900.34 = 179,884.63/x
  3. Step 3: Cross multiply
    315,946.91x = 435,900.34 × 179,884.63
  4. Step 4: Simplify right side
    315,946.91x = 78,411,771,135.65
  5. Step 5: Solve for x
    x = 78,411,771,135.65/315,946.91
  6. Step 6: Final answer
    x = 248,180.21

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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.