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Finding the Fourth Proportional to 256,483.46, 384,725.12 and 69,494.96

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Solution

The fourth proportional to 256,483.46, 384,725.12 and 69,494.96 is: 104,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,483.46 : 384,725.12 = 69,494.96 : x
  2. Step 2: Convert to fraction form
    256,483.46/384,725.12 = 69,494.96/x
  3. Step 3: Cross multiply
    256,483.46x = 384,725.12 × 69,494.96
  4. Step 4: Simplify right side
    256,483.46x = 26,736,454,554.29
  5. Step 5: Solve for x
    x = 26,736,454,554.29/256,483.46
  6. Step 6: Final answer
    x = 104,242.41

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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.