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Finding the Fourth Proportional to 505,624.64, 758,143.53 and 239,382.90

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Solution

The fourth proportional to 505,624.64, 758,143.53 and 239,382.90 is: 358,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,624.64 : 758,143.53 = 239,382.90 : x
  2. Step 2: Convert to fraction form
    505,624.64/758,143.53 = 239,382.90/x
  3. Step 3: Cross multiply
    505,624.64x = 758,143.53 × 239,382.90
  4. Step 4: Simplify right side
    505,624.64x = 181,486,596,827.64
  5. Step 5: Solve for x
    x = 181,486,596,827.64/505,624.64
  6. Step 6: Final answer
    x = 358,935.43

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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.