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Finding the Fourth Proportional to 316,358.40, 474,998.40 and 223,276.80

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Solution

The fourth proportional to 316,358.40, 474,998.40 and 223,276.80 is: 335,240.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,358.40 : 474,998.40 = 223,276.80 : x
  2. Step 2: Convert to fraction form
    316,358.40/474,998.40 = 223,276.80/x
  3. Step 3: Cross multiply
    316,358.40x = 474,998.40 × 223,276.80
  4. Step 4: Simplify right side
    316,358.40x = 106,056,122,757.12
  5. Step 5: Solve for x
    x = 106,056,122,757.12/316,358.40
  6. Step 6: Final answer
    x = 335,240.42

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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.