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Finding the Fourth Proportional to 304,637.73, 420,491.17 and 197,215.01

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Solution

The fourth proportional to 304,637.73, 420,491.17 and 197,215.01 is: 272,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,637.73 : 420,491.17 = 197,215.01 : x
  2. Step 2: Convert to fraction form
    304,637.73/420,491.17 = 197,215.01/x
  3. Step 3: Cross multiply
    304,637.73x = 420,491.17 × 197,215.01
  4. Step 4: Simplify right side
    304,637.73x = 82,927,170,296.46
  5. Step 5: Solve for x
    x = 82,927,170,296.46/304,637.73
  6. Step 6: Final answer
    x = 272,215.69

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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.