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Finding the Fourth Proportional to 377,284.88, 520,661.64 and 207,528.08

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Solution

The fourth proportional to 377,284.88, 520,661.64 and 207,528.08 is: 286,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,284.88 : 520,661.64 = 207,528.08 : x
  2. Step 2: Convert to fraction form
    377,284.88/520,661.64 = 207,528.08/x
  3. Step 3: Cross multiply
    377,284.88x = 520,661.64 × 207,528.08
  4. Step 4: Simplify right side
    377,284.88x = 108,051,910,478.85
  5. Step 5: Solve for x
    x = 108,051,910,478.85/377,284.88
  6. Step 6: Final answer
    x = 286,393.43

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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.