Home / 226,717.60-340,076.40-215,312.80

Finding the Fourth Proportional to 226,717.60, 340,076.40 and 215,312.80

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Solution

The fourth proportional to 226,717.60, 340,076.40 and 215,312.80 is: 322,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,717.60 : 340,076.40 = 215,312.80 : x
  2. Step 2: Convert to fraction form
    226,717.60/340,076.40 = 215,312.80/x
  3. Step 3: Cross multiply
    226,717.60x = 340,076.40 × 215,312.80
  4. Step 4: Simplify right side
    226,717.60x = 73,222,801,897.92
  5. Step 5: Solve for x
    x = 73,222,801,897.92/226,717.60
  6. Step 6: Final answer
    x = 322,969.20

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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.