Home / 319,613.04-479,531.34-142,103.16

Finding the Fourth Proportional to 319,613.04, 479,531.34 and 142,103.16

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Solution

The fourth proportional to 319,613.04, 479,531.34 and 142,103.16 is: 213,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,613.04 : 479,531.34 = 142,103.16 : x
  2. Step 2: Convert to fraction form
    319,613.04/479,531.34 = 142,103.16/x
  3. Step 3: Cross multiply
    319,613.04x = 479,531.34 × 142,103.16
  4. Step 4: Simplify right side
    319,613.04x = 68,142,918,733.03
  5. Step 5: Solve for x
    x = 68,142,918,733.03/319,613.04
  6. Step 6: Final answer
    x = 213,204.44

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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.