Home / 255,134.40-382,748.04-105,345.60

Finding the Fourth Proportional to 255,134.40, 382,748.04 and 105,345.60

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Solution

The fourth proportional to 255,134.40, 382,748.04 and 105,345.60 is: 158,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,134.40 : 382,748.04 = 105,345.60 : x
  2. Step 2: Convert to fraction form
    255,134.40/382,748.04 = 105,345.60/x
  3. Step 3: Cross multiply
    255,134.40x = 382,748.04 × 105,345.60
  4. Step 4: Simplify right side
    255,134.40x = 40,320,821,922.62
  5. Step 5: Solve for x
    x = 40,320,821,922.62/255,134.40
  6. Step 6: Final answer
    x = 158,037.58

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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.