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Finding the Fourth Proportional to 156,618.80, 234,928.20 and 51,448.40

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Solution

The fourth proportional to 156,618.80, 234,928.20 and 51,448.40 is: 77,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.80 : 234,928.20 = 51,448.40 : x
  2. Step 2: Convert to fraction form
    156,618.80/234,928.20 = 51,448.40/x
  3. Step 3: Cross multiply
    156,618.80x = 234,928.20 × 51,448.40
  4. Step 4: Simplify right side
    156,618.80x = 12,086,680,004.88
  5. Step 5: Solve for x
    x = 12,086,680,004.88/156,618.80
  6. Step 6: Final answer
    x = 77,172.60

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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.