Home / 378,729.14-522,835.61-235,535.32

Finding the Fourth Proportional to 378,729.14, 522,835.61 and 235,535.32

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Solution

The fourth proportional to 378,729.14, 522,835.61 and 235,535.32 is: 325,156.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,729.14 : 522,835.61 = 235,535.32 : x
  2. Step 2: Convert to fraction form
    378,729.14/522,835.61 = 235,535.32/x
  3. Step 3: Cross multiply
    378,729.14x = 522,835.61 × 235,535.32
  4. Step 4: Simplify right side
    378,729.14x = 123,146,248,916.89
  5. Step 5: Solve for x
    x = 123,146,248,916.89/378,729.14
  6. Step 6: Final answer
    x = 325,156.52

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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.