Home / 314,942.85-472,275.77-115,211.43

Finding the Fourth Proportional to 314,942.85, 472,275.77 and 115,211.43

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Solution

The fourth proportional to 314,942.85, 472,275.77 and 115,211.43 is: 172,766.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,942.85 : 472,275.77 = 115,211.43 : x
  2. Step 2: Convert to fraction form
    314,942.85/472,275.77 = 115,211.43/x
  3. Step 3: Cross multiply
    314,942.85x = 472,275.77 × 115,211.43
  4. Step 4: Simplify right side
    314,942.85x = 54,411,566,239.99
  5. Step 5: Solve for x
    x = 54,411,566,239.99/314,942.85
  6. Step 6: Final answer
    x = 172,766.48

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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.