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Finding the Fourth Proportional to 377,081.84, 520,359.64 and 207,314.66

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Solution

The fourth proportional to 377,081.84, 520,359.64 and 207,314.66 is: 286,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,081.84 : 520,359.64 = 207,314.66 : x
  2. Step 2: Convert to fraction form
    377,081.84/520,359.64 = 207,314.66/x
  3. Step 3: Cross multiply
    377,081.84x = 520,359.64 × 207,314.66
  4. Step 4: Simplify right side
    377,081.84x = 107,878,178,724.24
  5. Step 5: Solve for x
    x = 107,878,178,724.24/377,081.84
  6. Step 6: Final answer
    x = 286,086.91

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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.