Home / 257,063.12-354,747.04-143,885.84

Finding the Fourth Proportional to 257,063.12, 354,747.04 and 143,885.84

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Solution

The fourth proportional to 257,063.12, 354,747.04 and 143,885.84 is: 198,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,063.12 : 354,747.04 = 143,885.84 : x
  2. Step 2: Convert to fraction form
    257,063.12/354,747.04 = 143,885.84/x
  3. Step 3: Cross multiply
    257,063.12x = 354,747.04 × 143,885.84
  4. Step 4: Simplify right side
    257,063.12x = 51,043,075,837.91
  5. Step 5: Solve for x
    x = 51,043,075,837.91/257,063.12
  6. Step 6: Final answer
    x = 198,562.42

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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.