Home / 291,721.40-437,582.10-192,015.80

Finding the Fourth Proportional to 291,721.40, 437,582.10 and 192,015.80

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Solution

The fourth proportional to 291,721.40, 437,582.10 and 192,015.80 is: 288,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,721.40 : 437,582.10 = 192,015.80 : x
  2. Step 2: Convert to fraction form
    291,721.40/437,582.10 = 192,015.80/x
  3. Step 3: Cross multiply
    291,721.40x = 437,582.10 × 192,015.80
  4. Step 4: Simplify right side
    291,721.40x = 84,022,676,997.18
  5. Step 5: Solve for x
    x = 84,022,676,997.18/291,721.40
  6. Step 6: Final answer
    x = 288,023.70

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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.