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Finding the Fourth Proportional to 256,181.40, 384,041.70 and 167,477.40

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Solution

The fourth proportional to 256,181.40, 384,041.70 and 167,477.40 is: 251,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,181.40 : 384,041.70 = 167,477.40 : x
  2. Step 2: Convert to fraction form
    256,181.40/384,041.70 = 167,477.40/x
  3. Step 3: Cross multiply
    256,181.40x = 384,041.70 × 167,477.40
  4. Step 4: Simplify right side
    256,181.40x = 64,318,305,407.58
  5. Step 5: Solve for x
    x = 64,318,305,407.58/256,181.40
  6. Step 6: Final answer
    x = 251,065.48

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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.