Home / 255,412.21-383,178.23-77,919.17

Finding the Fourth Proportional to 255,412.21, 383,178.23 and 77,919.17

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Solution

The fourth proportional to 255,412.21, 383,178.23 and 77,919.17 is: 116,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,412.21 : 383,178.23 = 77,919.17 : x
  2. Step 2: Convert to fraction form
    255,412.21/383,178.23 = 77,919.17/x
  3. Step 3: Cross multiply
    255,412.21x = 383,178.23 × 77,919.17
  4. Step 4: Simplify right side
    255,412.21x = 29,856,927,959.10
  5. Step 5: Solve for x
    x = 29,856,927,959.10/255,412.21
  6. Step 6: Final answer
    x = 116,897.03

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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.