Home / 406,359.85-609,579.87-140,085.31

Finding the Fourth Proportional to 406,359.85, 609,579.87 and 140,085.31

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Solution

The fourth proportional to 406,359.85, 609,579.87 and 140,085.31 is: 210,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,359.85 : 609,579.87 = 140,085.31 : x
  2. Step 2: Convert to fraction form
    406,359.85/609,579.87 = 140,085.31/x
  3. Step 3: Cross multiply
    406,359.85x = 609,579.87 × 140,085.31
  4. Step 4: Simplify right side
    406,359.85x = 85,393,185,058.71
  5. Step 5: Solve for x
    x = 85,393,185,058.71/406,359.85
  6. Step 6: Final answer
    x = 210,141.79

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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.