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Finding the Fourth Proportional to 220,627.60, 328,446.44 and 219,315.40

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Solution

The fourth proportional to 220,627.60, 328,446.44 and 219,315.40 is: 326,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,627.60 : 328,446.44 = 219,315.40 : x
  2. Step 2: Convert to fraction form
    220,627.60/328,446.44 = 219,315.40/x
  3. Step 3: Cross multiply
    220,627.60x = 328,446.44 × 219,315.40
  4. Step 4: Simplify right side
    220,627.60x = 72,033,362,367.18
  5. Step 5: Solve for x
    x = 72,033,362,367.18/220,627.60
  6. Step 6: Final answer
    x = 326,492.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.