Home / 208,330.86-312,496.68-75,305.04

Finding the Fourth Proportional to 208,330.86, 312,496.68 and 75,305.04

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Solution

The fourth proportional to 208,330.86, 312,496.68 and 75,305.04 is: 112,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,330.86 : 312,496.68 = 75,305.04 : x
  2. Step 2: Convert to fraction form
    208,330.86/312,496.68 = 75,305.04/x
  3. Step 3: Cross multiply
    208,330.86x = 312,496.68 × 75,305.04
  4. Step 4: Simplify right side
    208,330.86x = 23,532,574,987.27
  5. Step 5: Solve for x
    x = 23,532,574,987.27/208,330.86
  6. Step 6: Final answer
    x = 112,957.70

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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.