Home / 256,535.24-384,904.92-98,721.32

Finding the Fourth Proportional to 256,535.24, 384,904.92 and 98,721.32

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Solution

The fourth proportional to 256,535.24, 384,904.92 and 98,721.32 is: 148,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,535.24 : 384,904.92 = 98,721.32 : x
  2. Step 2: Convert to fraction form
    256,535.24/384,904.92 = 98,721.32/x
  3. Step 3: Cross multiply
    256,535.24x = 384,904.92 × 98,721.32
  4. Step 4: Simplify right side
    256,535.24x = 37,998,321,776.89
  5. Step 5: Solve for x
    x = 37,998,321,776.89/256,535.24
  6. Step 6: Final answer
    x = 148,121.26

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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.