Home / 253,046.43-378,779.09-168,875.55

Finding the Fourth Proportional to 253,046.43, 378,779.09 and 168,875.55

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Solution

The fourth proportional to 253,046.43, 378,779.09 and 168,875.55 is: 252,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,046.43 : 378,779.09 = 168,875.55 : x
  2. Step 2: Convert to fraction form
    253,046.43/378,779.09 = 168,875.55/x
  3. Step 3: Cross multiply
    253,046.43x = 378,779.09 × 168,875.55
  4. Step 4: Simplify right side
    253,046.43x = 63,966,526,307.87
  5. Step 5: Solve for x
    x = 63,966,526,307.87/253,046.43
  6. Step 6: Final answer
    x = 252,785.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.