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Finding the Fourth Proportional to 255,711.32, 353,032.98 and 227,338.64

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Solution

The fourth proportional to 255,711.32, 353,032.98 and 227,338.64 is: 313,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,711.32 : 353,032.98 = 227,338.64 : x
  2. Step 2: Convert to fraction form
    255,711.32/353,032.98 = 227,338.64/x
  3. Step 3: Cross multiply
    255,711.32x = 353,032.98 × 227,338.64
  4. Step 4: Simplify right side
    255,711.32x = 80,258,037,548.35
  5. Step 5: Solve for x
    x = 80,258,037,548.35/255,711.32
  6. Step 6: Final answer
    x = 313,861.89

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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.