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Finding the Fourth Proportional to 377,488, 520,937.09 and 207,725.77

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Solution

The fourth proportional to 377,488, 520,937.09 and 207,725.77 is: 286,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,488 : 520,937.09 = 207,725.77 : x
  2. Step 2: Convert to fraction form
    377,488/520,937.09 = 207,725.77/x
  3. Step 3: Cross multiply
    377,488x = 520,937.09 × 207,725.77
  4. Step 4: Simplify right side
    377,488x = 108,212,058,141.81
  5. Step 5: Solve for x
    x = 108,212,058,141.81/377,488
  6. Step 6: Final answer
    x = 286,663.57

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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.