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Finding the Fourth Proportional to 377,521.50, 520,979.75 and 207,755.62

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Solution

The fourth proportional to 377,521.50, 520,979.75 and 207,755.62 is: 286,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,521.50 : 520,979.75 = 207,755.62 : x
  2. Step 2: Convert to fraction form
    377,521.50/520,979.75 = 207,755.62/x
  3. Step 3: Cross multiply
    377,521.50x = 520,979.75 × 207,755.62
  4. Step 4: Simplify right side
    377,521.50x = 108,236,470,968.70
  5. Step 5: Solve for x
    x = 108,236,470,968.70/377,521.50
  6. Step 6: Final answer
    x = 286,702.80

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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.