Home / 312,890.10-469,225.80-163,080.60

Finding the Fourth Proportional to 312,890.10, 469,225.80 and 163,080.60

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Solution

The fourth proportional to 312,890.10, 469,225.80 and 163,080.60 is: 244,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,890.10 : 469,225.80 = 163,080.60 : x
  2. Step 2: Convert to fraction form
    312,890.10/469,225.80 = 163,080.60/x
  3. Step 3: Cross multiply
    312,890.10x = 469,225.80 × 163,080.60
  4. Step 4: Simplify right side
    312,890.10x = 76,521,624,999.48
  5. Step 5: Solve for x
    x = 76,521,624,999.48/312,890.10
  6. Step 6: Final answer
    x = 244,563.91

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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.