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Finding the Fourth Proportional to 180,633.60, 270,950.40 and 55,987.20

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Solution

The fourth proportional to 180,633.60, 270,950.40 and 55,987.20 is: 83,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,633.60 : 270,950.40 = 55,987.20 : x
  2. Step 2: Convert to fraction form
    180,633.60/270,950.40 = 55,987.20/x
  3. Step 3: Cross multiply
    180,633.60x = 270,950.40 × 55,987.20
  4. Step 4: Simplify right side
    180,633.60x = 15,169,754,234.88
  5. Step 5: Solve for x
    x = 15,169,754,234.88/180,633.60
  6. Step 6: Final answer
    x = 83,980.80

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1.5x scale

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.