Home / 254,859.36-382,141.44-86,323.20

Finding the Fourth Proportional to 254,859.36, 382,141.44 and 86,323.20

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Solution

The fourth proportional to 254,859.36, 382,141.44 and 86,323.20 is: 129,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,859.36 : 382,141.44 = 86,323.20 : x
  2. Step 2: Convert to fraction form
    254,859.36/382,141.44 = 86,323.20/x
  3. Step 3: Cross multiply
    254,859.36x = 382,141.44 × 86,323.20
  4. Step 4: Simplify right side
    254,859.36x = 32,987,671,953.41
  5. Step 5: Solve for x
    x = 32,987,671,953.41/254,859.36
  6. Step 6: Final answer
    x = 129,434.81

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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.