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Finding the Fourth Proportional to 153,818.40, 230,727.60 and 70,874.40

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Solution

The fourth proportional to 153,818.40, 230,727.60 and 70,874.40 is: 106,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,818.40 : 230,727.60 = 70,874.40 : x
  2. Step 2: Convert to fraction form
    153,818.40/230,727.60 = 70,874.40/x
  3. Step 3: Cross multiply
    153,818.40x = 230,727.60 × 70,874.40
  4. Step 4: Simplify right side
    153,818.40x = 16,352,680,213.44
  5. Step 5: Solve for x
    x = 16,352,680,213.44/153,818.40
  6. Step 6: Final answer
    x = 106,311.60

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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.