Home / 377,557.40-521,019.36-205,478.75

Finding the Fourth Proportional to 377,557.40, 521,019.36 and 205,478.75

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Solution

The fourth proportional to 377,557.40, 521,019.36 and 205,478.75 is: 283,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,557.40 : 521,019.36 = 205,478.75 : x
  2. Step 2: Convert to fraction form
    377,557.40/521,019.36 = 205,478.75/x
  3. Step 3: Cross multiply
    377,557.40x = 521,019.36 × 205,478.75
  4. Step 4: Simplify right side
    377,557.40x = 107,058,404,213.50
  5. Step 5: Solve for x
    x = 107,058,404,213.50/377,557.40
  6. Step 6: Final answer
    x = 283,555.31

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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.