Home / 217,660.50-326,490.70-142,763.34

Finding the Fourth Proportional to 217,660.50, 326,490.70 and 142,763.34

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Solution

The fourth proportional to 217,660.50, 326,490.70 and 142,763.34 is: 214,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,660.50 : 326,490.70 = 142,763.34 : x
  2. Step 2: Convert to fraction form
    217,660.50/326,490.70 = 142,763.34/x
  3. Step 3: Cross multiply
    217,660.50x = 326,490.70 × 142,763.34
  4. Step 4: Simplify right side
    217,660.50x = 46,610,903,946.05
  5. Step 5: Solve for x
    x = 46,610,903,946.05/217,660.50
  6. Step 6: Final answer
    x = 214,144.98

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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.