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Finding the Fourth Proportional to 505,626.14, 758,145.78 and 239,384.40

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Solution

The fourth proportional to 505,626.14, 758,145.78 and 239,384.40 is: 358,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,626.14 : 758,145.78 = 239,384.40 : x
  2. Step 2: Convert to fraction form
    505,626.14/758,145.78 = 239,384.40/x
  3. Step 3: Cross multiply
    505,626.14x = 758,145.78 × 239,384.40
  4. Step 4: Simplify right side
    505,626.14x = 181,488,272,657.83
  5. Step 5: Solve for x
    x = 181,488,272,657.83/505,626.14
  6. Step 6: Final answer
    x = 358,937.68

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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.