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Finding the Fourth Proportional to 180,637.76, 270,965.28 and 87,222.08

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Solution

The fourth proportional to 180,637.76, 270,965.28 and 87,222.08 is: 130,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,637.76 : 270,965.28 = 87,222.08 : x
  2. Step 2: Convert to fraction form
    180,637.76/270,965.28 = 87,222.08/x
  3. Step 3: Cross multiply
    180,637.76x = 270,965.28 × 87,222.08
  4. Step 4: Simplify right side
    180,637.76x = 23,634,155,329.38
  5. Step 5: Solve for x
    x = 23,634,155,329.38/180,637.76
  6. Step 6: Final answer
    x = 130,837.29

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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.