Home / 304,731.02-420,389.21-197,335.64

Finding the Fourth Proportional to 304,731.02, 420,389.21 and 197,335.64

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Solution

The fourth proportional to 304,731.02, 420,389.21 and 197,335.64 is: 272,232.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,731.02 : 420,389.21 = 197,335.64 : x
  2. Step 2: Convert to fraction form
    304,731.02/420,389.21 = 197,335.64/x
  3. Step 3: Cross multiply
    304,731.02x = 420,389.21 × 197,335.64
  4. Step 4: Simplify right side
    304,731.02x = 82,957,775,348.76
  5. Step 5: Solve for x
    x = 82,957,775,348.76/304,731.02
  6. Step 6: Final answer
    x = 272,232.79

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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.