Home / 255,303.05-382,968.96-77,815.85

Finding the Fourth Proportional to 255,303.05, 382,968.96 and 77,815.85

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Solution

The fourth proportional to 255,303.05, 382,968.96 and 77,815.85 is: 116,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,303.05 : 382,968.96 = 77,815.85 : x
  2. Step 2: Convert to fraction form
    255,303.05/382,968.96 = 77,815.85/x
  3. Step 3: Cross multiply
    255,303.05x = 382,968.96 × 77,815.85
  4. Step 4: Simplify right side
    255,303.05x = 29,801,053,231.17
  5. Step 5: Solve for x
    x = 29,801,053,231.17/255,303.05
  6. Step 6: Final answer
    x = 116,728.15

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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.