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Finding the Fourth Proportional to 375,872.68, 518,202.52 and 298,604.71

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Solution

The fourth proportional to 375,872.68, 518,202.52 and 298,604.71 is: 411,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,872.68 : 518,202.52 = 298,604.71 : x
  2. Step 2: Convert to fraction form
    375,872.68/518,202.52 = 298,604.71/x
  3. Step 3: Cross multiply
    375,872.68x = 518,202.52 × 298,604.71
  4. Step 4: Simplify right side
    375,872.68x = 154,737,710,931.77
  5. Step 5: Solve for x
    x = 154,737,710,931.77/375,872.68
  6. Step 6: Final answer
    x = 411,675.86

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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.