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Finding the Fourth Proportional to 261,992.32, 392,659.84 and 112,056.64

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Solution

The fourth proportional to 261,992.32, 392,659.84 and 112,056.64 is: 167,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,992.32 : 392,659.84 = 112,056.64 : x
  2. Step 2: Convert to fraction form
    261,992.32/392,659.84 = 112,056.64/x
  3. Step 3: Cross multiply
    261,992.32x = 392,659.84 × 112,056.64
  4. Step 4: Simplify right side
    261,992.32x = 44,000,142,333.34
  5. Step 5: Solve for x
    x = 44,000,142,333.34/261,992.32
  6. Step 6: Final answer
    x = 167,944.40

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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.