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Finding the Fourth Proportional to 570,159, 855,238.48 and 262,379.91

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Solution

The fourth proportional to 570,159, 855,238.48 and 262,379.91 is: 393,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,159 : 855,238.48 = 262,379.91 : x
  2. Step 2: Convert to fraction form
    570,159/855,238.48 = 262,379.91/x
  3. Step 3: Cross multiply
    570,159x = 855,238.48 × 262,379.91
  4. Step 4: Simplify right side
    570,159x = 224,397,395,410.94
  5. Step 5: Solve for x
    x = 224,397,395,410.94/570,159
  6. Step 6: Final answer
    x = 393,569.86

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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.