Home / 377,904.23-521,507.85-208,138.36

Finding the Fourth Proportional to 377,904.23, 521,507.85 and 208,138.36

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Solution

The fourth proportional to 377,904.23, 521,507.85 and 208,138.36 is: 287,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,904.23 : 521,507.85 = 208,138.36 : x
  2. Step 2: Convert to fraction form
    377,904.23/521,507.85 = 208,138.36/x
  3. Step 3: Cross multiply
    377,904.23x = 521,507.85 × 208,138.36
  4. Step 4: Simplify right side
    377,904.23x = 108,545,788,626.13
  5. Step 5: Solve for x
    x = 108,545,788,626.13/377,904.23
  6. Step 6: Final answer
    x = 287,230.94

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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.