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Finding the Fourth Proportional to 144,492.80, 216,739.20 and 50,986.40

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Solution

The fourth proportional to 144,492.80, 216,739.20 and 50,986.40 is: 76,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,492.80 : 216,739.20 = 50,986.40 : x
  2. Step 2: Convert to fraction form
    144,492.80/216,739.20 = 50,986.40/x
  3. Step 3: Cross multiply
    144,492.80x = 216,739.20 × 50,986.40
  4. Step 4: Simplify right side
    144,492.80x = 11,050,751,546.88
  5. Step 5: Solve for x
    x = 11,050,751,546.88/144,492.80
  6. Step 6: Final answer
    x = 76,479.60

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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.