Home / 406,371.51-609,586.49-140,128.19

Finding the Fourth Proportional to 406,371.51, 609,586.49 and 140,128.19

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Solution

The fourth proportional to 406,371.51, 609,586.49 and 140,128.19 is: 210,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,371.51 : 609,586.49 = 140,128.19 : x
  2. Step 2: Convert to fraction form
    406,371.51/609,586.49 = 140,128.19/x
  3. Step 3: Cross multiply
    406,371.51x = 609,586.49 × 140,128.19
  4. Step 4: Simplify right side
    406,371.51x = 85,420,247,743.58
  5. Step 5: Solve for x
    x = 85,420,247,743.58/406,371.51
  6. Step 6: Final answer
    x = 210,202.35

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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.