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Finding the Fourth Proportional to 236,421.20, 354,631.80 and 229,860.20

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Solution

The fourth proportional to 236,421.20, 354,631.80 and 229,860.20 is: 344,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,421.20 : 354,631.80 = 229,860.20 : x
  2. Step 2: Convert to fraction form
    236,421.20/354,631.80 = 229,860.20/x
  3. Step 3: Cross multiply
    236,421.20x = 354,631.80 × 229,860.20
  4. Step 4: Simplify right side
    236,421.20x = 81,515,736,474.36
  5. Step 5: Solve for x
    x = 81,515,736,474.36/236,421.20
  6. Step 6: Final answer
    x = 344,790.30

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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.