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Finding the Fourth Proportional to 326,760.12, 450,895.02 and 219,308.28

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Solution

The fourth proportional to 326,760.12, 450,895.02 and 219,308.28 is: 302,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,760.12 : 450,895.02 = 219,308.28 : x
  2. Step 2: Convert to fraction form
    326,760.12/450,895.02 = 219,308.28/x
  3. Step 3: Cross multiply
    326,760.12x = 450,895.02 × 219,308.28
  4. Step 4: Simplify right side
    326,760.12x = 98,885,011,296.77
  5. Step 5: Solve for x
    x = 98,885,011,296.77/326,760.12
  6. Step 6: Final answer
    x = 302,622.64

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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.