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Finding the Fourth Proportional to 256,448.80, 384,604.08 and 173,850.40

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Solution

The fourth proportional to 256,448.80, 384,604.08 and 173,850.40 is: 260,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,448.80 : 384,604.08 = 173,850.40 : x
  2. Step 2: Convert to fraction form
    256,448.80/384,604.08 = 173,850.40/x
  3. Step 3: Cross multiply
    256,448.80x = 384,604.08 × 173,850.40
  4. Step 4: Simplify right side
    256,448.80x = 66,863,573,149.63
  5. Step 5: Solve for x
    x = 66,863,573,149.63/256,448.80
  6. Step 6: Final answer
    x = 260,728.74

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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.