Home / 256,186.20-384,279.30-156,653.40

Finding the Fourth Proportional to 256,186.20, 384,279.30 and 156,653.40

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Solution

The fourth proportional to 256,186.20, 384,279.30 and 156,653.40 is: 234,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,186.20 : 384,279.30 = 156,653.40 : x
  2. Step 2: Convert to fraction form
    256,186.20/384,279.30 = 156,653.40/x
  3. Step 3: Cross multiply
    256,186.20x = 384,279.30 × 156,653.40
  4. Step 4: Simplify right side
    256,186.20x = 60,198,658,894.62
  5. Step 5: Solve for x
    x = 60,198,658,894.62/256,186.20
  6. Step 6: Final answer
    x = 234,980.10

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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.