Home / 208,056.30-312,084.45-158,289.90

Finding the Fourth Proportional to 208,056.30, 312,084.45 and 158,289.90

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Solution

The fourth proportional to 208,056.30, 312,084.45 and 158,289.90 is: 237,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,056.30 : 312,084.45 = 158,289.90 : x
  2. Step 2: Convert to fraction form
    208,056.30/312,084.45 = 158,289.90/x
  3. Step 3: Cross multiply
    208,056.30x = 312,084.45 × 158,289.90
  4. Step 4: Simplify right side
    208,056.30x = 49,399,816,382.06
  5. Step 5: Solve for x
    x = 49,399,816,382.06/208,056.30
  6. Step 6: Final answer
    x = 237,434.85

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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.