Home / 279,570.12-385,822.98-210,536

Finding the Fourth Proportional to 279,570.12, 385,822.98 and 210,536

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Solution

The fourth proportional to 279,570.12, 385,822.98 and 210,536 is: 290,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,570.12 : 385,822.98 = 210,536 : x
  2. Step 2: Convert to fraction form
    279,570.12/385,822.98 = 210,536/x
  3. Step 3: Cross multiply
    279,570.12x = 385,822.98 × 210,536
  4. Step 4: Simplify right side
    279,570.12x = 81,229,626,917.28
  5. Step 5: Solve for x
    x = 81,229,626,917.28/279,570.12
  6. Step 6: Final answer
    x = 290,551.89

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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.