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Finding the Fourth Proportional to 235,987, 325,662.06 and 130,003

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Solution

The fourth proportional to 235,987, 325,662.06 and 130,003 is: 179,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,987 : 325,662.06 = 130,003 : x
  2. Step 2: Convert to fraction form
    235,987/325,662.06 = 130,003/x
  3. Step 3: Cross multiply
    235,987x = 325,662.06 × 130,003
  4. Step 4: Simplify right side
    235,987x = 42,337,044,786.18
  5. Step 5: Solve for x
    x = 42,337,044,786.18/235,987
  6. Step 6: Final answer
    x = 179,404.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.