Home / 319,514.60-479,271.90-97,869.80

Finding the Fourth Proportional to 319,514.60, 479,271.90 and 97,869.80

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Solution

The fourth proportional to 319,514.60, 479,271.90 and 97,869.80 is: 146,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,514.60 : 479,271.90 = 97,869.80 : x
  2. Step 2: Convert to fraction form
    319,514.60/479,271.90 = 97,869.80/x
  3. Step 3: Cross multiply
    319,514.60x = 479,271.90 × 97,869.80
  4. Step 4: Simplify right side
    319,514.60x = 46,906,244,998.62
  5. Step 5: Solve for x
    x = 46,906,244,998.62/319,514.60
  6. Step 6: Final answer
    x = 146,804.70

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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.