Home / 215,865.60-323,798.40-193,315.20

Finding the Fourth Proportional to 215,865.60, 323,798.40 and 193,315.20

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Solution

The fourth proportional to 215,865.60, 323,798.40 and 193,315.20 is: 289,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,865.60 : 323,798.40 = 193,315.20 : x
  2. Step 2: Convert to fraction form
    215,865.60/323,798.40 = 193,315.20/x
  3. Step 3: Cross multiply
    215,865.60x = 323,798.40 × 193,315.20
  4. Step 4: Simplify right side
    215,865.60x = 62,595,152,455.68
  5. Step 5: Solve for x
    x = 62,595,152,455.68/215,865.60
  6. Step 6: Final answer
    x = 289,972.80

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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.