Home / 377,859.10-521,437.74-205,780.07

Finding the Fourth Proportional to 377,859.10, 521,437.74 and 205,780.07

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Solution

The fourth proportional to 377,859.10, 521,437.74 and 205,780.07 is: 283,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,859.10 : 521,437.74 = 205,780.07 : x
  2. Step 2: Convert to fraction form
    377,859.10/521,437.74 = 205,780.07/x
  3. Step 3: Cross multiply
    377,859.10x = 521,437.74 × 205,780.07
  4. Step 4: Simplify right side
    377,859.10x = 107,301,494,637.84
  5. Step 5: Solve for x
    x = 107,301,494,637.84/377,859.10
  6. Step 6: Final answer
    x = 283,972.24

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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.