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Finding the Fourth Proportional to 253,752.60, 380,112.18 and 120,228.12

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Solution

The fourth proportional to 253,752.60, 380,112.18 and 120,228.12 is: 180,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,752.60 : 380,112.18 = 120,228.12 : x
  2. Step 2: Convert to fraction form
    253,752.60/380,112.18 = 120,228.12/x
  3. Step 3: Cross multiply
    253,752.60x = 380,112.18 × 120,228.12
  4. Step 4: Simplify right side
    253,752.60x = 45,700,172,790.50
  5. Step 5: Solve for x
    x = 45,700,172,790.50/253,752.60
  6. Step 6: Final answer
    x = 180,097.36

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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.