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Finding the Fourth Proportional to 304,718.04, 420,314.94 and 191,343.96

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Solution

The fourth proportional to 304,718.04, 420,314.94 and 191,343.96 is: 263,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,718.04 : 420,314.94 = 191,343.96 : x
  2. Step 2: Convert to fraction form
    304,718.04/420,314.94 = 191,343.96/x
  3. Step 3: Cross multiply
    304,718.04x = 420,314.94 × 191,343.96
  4. Step 4: Simplify right side
    304,718.04x = 80,424,725,066.76
  5. Step 5: Solve for x
    x = 80,424,725,066.76/304,718.04
  6. Step 6: Final answer
    x = 263,931.62

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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.