Home / 406,241.52-609,403.08-139,967.28

Finding the Fourth Proportional to 406,241.52, 609,403.08 and 139,967.28

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Solution

The fourth proportional to 406,241.52, 609,403.08 and 139,967.28 is: 209,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,241.52 : 609,403.08 = 139,967.28 : x
  2. Step 2: Convert to fraction form
    406,241.52/609,403.08 = 139,967.28/x
  3. Step 3: Cross multiply
    406,241.52x = 609,403.08 × 139,967.28
  4. Step 4: Simplify right side
    406,241.52x = 85,296,491,531.22
  5. Step 5: Solve for x
    x = 85,296,491,531.22/406,241.52
  6. Step 6: Final answer
    x = 209,964.98

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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.