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Finding the Fourth Proportional to 228,279.83, 315,035.44 and 126,303.64

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Solution

The fourth proportional to 228,279.83, 315,035.44 and 126,303.64 is: 174,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,279.83 : 315,035.44 = 126,303.64 : x
  2. Step 2: Convert to fraction form
    228,279.83/315,035.44 = 126,303.64/x
  3. Step 3: Cross multiply
    228,279.83x = 315,035.44 × 126,303.64
  4. Step 4: Simplify right side
    228,279.83x = 39,790,121,697.65
  5. Step 5: Solve for x
    x = 39,790,121,697.65/228,279.83
  6. Step 6: Final answer
    x = 174,304.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.