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Finding the Fourth Proportional to 377,012, 520,263.38 and 207,244.91

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Solution

The fourth proportional to 377,012, 520,263.38 and 207,244.91 is: 285,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,012 : 520,263.38 = 207,244.91 : x
  2. Step 2: Convert to fraction form
    377,012/520,263.38 = 207,244.91/x
  3. Step 3: Cross multiply
    377,012x = 520,263.38 × 207,244.91
  4. Step 4: Simplify right side
    377,012x = 107,821,937,364.40
  5. Step 5: Solve for x
    x = 107,821,937,364.40/377,012
  6. Step 6: Final answer
    x = 285,990.73

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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.