Home / 279,561.13-385,810.56-210,527

Finding the Fourth Proportional to 279,561.13, 385,810.56 and 210,527

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Solution

The fourth proportional to 279,561.13, 385,810.56 and 210,527 is: 290,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,561.13 : 385,810.56 = 210,527 : x
  2. Step 2: Convert to fraction form
    279,561.13/385,810.56 = 210,527/x
  3. Step 3: Cross multiply
    279,561.13x = 385,810.56 × 210,527
  4. Step 4: Simplify right side
    279,561.13x = 81,223,539,765.12
  5. Step 5: Solve for x
    x = 81,223,539,765.12/279,561.13
  6. Step 6: Final answer
    x = 290,539.46

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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.