Home / 255,403.96-383,105.94-89,188.28

Finding the Fourth Proportional to 255,403.96, 383,105.94 and 89,188.28

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Solution

The fourth proportional to 255,403.96, 383,105.94 and 89,188.28 is: 133,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,403.96 : 383,105.94 = 89,188.28 : x
  2. Step 2: Convert to fraction form
    255,403.96/383,105.94 = 89,188.28/x
  3. Step 3: Cross multiply
    255,403.96x = 383,105.94 × 89,188.28
  4. Step 4: Simplify right side
    255,403.96x = 34,168,559,846.38
  5. Step 5: Solve for x
    x = 34,168,559,846.38/255,403.96
  6. Step 6: Final answer
    x = 133,782.42

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1.5x scale

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.