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Finding the Fourth Proportional to 380,112.48, 570,008.08 and 113,910.88

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Solution

The fourth proportional to 380,112.48, 570,008.08 and 113,910.88 is: 170,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,112.48 : 570,008.08 = 113,910.88 : x
  2. Step 2: Convert to fraction form
    380,112.48/570,008.08 = 113,910.88/x
  3. Step 3: Cross multiply
    380,112.48x = 570,008.08 × 113,910.88
  4. Step 4: Simplify right side
    380,112.48x = 64,930,121,999.91
  5. Step 5: Solve for x
    x = 64,930,121,999.91/380,112.48
  6. Step 6: Final answer
    x = 170,818.18

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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.