Home / 406,372.78-609,588.40-140,129.46

Finding the Fourth Proportional to 406,372.78, 609,588.40 and 140,129.46

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Solution

The fourth proportional to 406,372.78, 609,588.40 and 140,129.46 is: 210,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,372.78 : 609,588.40 = 140,129.46 : x
  2. Step 2: Convert to fraction form
    406,372.78/609,588.40 = 140,129.46/x
  3. Step 3: Cross multiply
    406,372.78x = 609,588.40 × 140,129.46
  4. Step 4: Simplify right side
    406,372.78x = 85,421,293,226.68
  5. Step 5: Solve for x
    x = 85,421,293,226.68/406,372.78
  6. Step 6: Final answer
    x = 210,204.27

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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.