Home / 252,070.87-378,263.96-102,311.16

Finding the Fourth Proportional to 252,070.87, 378,263.96 and 102,311.16

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Solution

The fourth proportional to 252,070.87, 378,263.96 and 102,311.16 is: 153,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,070.87 : 378,263.96 = 102,311.16 : x
  2. Step 2: Convert to fraction form
    252,070.87/378,263.96 = 102,311.16/x
  3. Step 3: Cross multiply
    252,070.87x = 378,263.96 × 102,311.16
  4. Step 4: Simplify right side
    252,070.87x = 38,700,624,533.79
  5. Step 5: Solve for x
    x = 38,700,624,533.79/252,070.87
  6. Step 6: Final answer
    x = 153,530.73

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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.