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Finding the Fourth Proportional to 291,898.20, 437,814.90 and 239,215.80

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Solution

The fourth proportional to 291,898.20, 437,814.90 and 239,215.80 is: 358,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,898.20 : 437,814.90 = 239,215.80 : x
  2. Step 2: Convert to fraction form
    291,898.20/437,814.90 = 239,215.80/x
  3. Step 3: Cross multiply
    291,898.20x = 437,814.90 × 239,215.80
  4. Step 4: Simplify right side
    291,898.20x = 104,732,241,555.42
  5. Step 5: Solve for x
    x = 104,732,241,555.42/291,898.20
  6. Step 6: Final answer
    x = 358,797.15

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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.