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Finding the Fourth Proportional to 304,621.20, 420,955.56 and 229,038.48

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Solution

The fourth proportional to 304,621.20, 420,955.56 and 229,038.48 is: 316,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,621.20 : 420,955.56 = 229,038.48 : x
  2. Step 2: Convert to fraction form
    304,621.20/420,955.56 = 229,038.48/x
  3. Step 3: Cross multiply
    304,621.20x = 420,955.56 × 229,038.48
  4. Step 4: Simplify right side
    304,621.20x = 96,415,021,609.95
  5. Step 5: Solve for x
    x = 96,415,021,609.95/304,621.20
  6. Step 6: Final answer
    x = 316,507.92

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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.