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Finding the Fourth Proportional to 256,118.72, 383,867.02 and 181,260.74

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Solution

The fourth proportional to 256,118.72, 383,867.02 and 181,260.74 is: 271,670.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,118.72 : 383,867.02 = 181,260.74 : x
  2. Step 2: Convert to fraction form
    256,118.72/383,867.02 = 181,260.74/x
  3. Step 3: Cross multiply
    256,118.72x = 383,867.02 × 181,260.74
  4. Step 4: Simplify right side
    256,118.72x = 69,580,020,106.79
  5. Step 5: Solve for x
    x = 69,580,020,106.79/256,118.72
  6. Step 6: Final answer
    x = 271,670.97

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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.