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Finding the Fourth Proportional to 162,200.40, 243,300.60 and 51,392.40

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Solution

The fourth proportional to 162,200.40, 243,300.60 and 51,392.40 is: 77,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,200.40 : 243,300.60 = 51,392.40 : x
  2. Step 2: Convert to fraction form
    162,200.40/243,300.60 = 51,392.40/x
  3. Step 3: Cross multiply
    162,200.40x = 243,300.60 × 51,392.40
  4. Step 4: Simplify right side
    162,200.40x = 12,503,801,755.44
  5. Step 5: Solve for x
    x = 12,503,801,755.44/162,200.40
  6. Step 6: Final answer
    x = 77,088.60

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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.