Home / 377,859.02-521,445.90-205,777.28

Finding the Fourth Proportional to 377,859.02, 521,445.90 and 205,777.28

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Solution

The fourth proportional to 377,859.02, 521,445.90 and 205,777.28 is: 283,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,859.02 : 521,445.90 = 205,777.28 : x
  2. Step 2: Convert to fraction form
    377,859.02/521,445.90 = 205,777.28/x
  3. Step 3: Cross multiply
    377,859.02x = 521,445.90 × 205,777.28
  4. Step 4: Simplify right side
    377,859.02x = 107,301,718,969.15
  5. Step 5: Solve for x
    x = 107,301,718,969.15/377,859.02
  6. Step 6: Final answer
    x = 283,972.89

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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.