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Finding the Fourth Proportional to 418,332.51, 577,303.37 and 227,345.94

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Solution

The fourth proportional to 418,332.51, 577,303.37 and 227,345.94 is: 313,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,332.51 : 577,303.37 = 227,345.94 : x
  2. Step 2: Convert to fraction form
    418,332.51/577,303.37 = 227,345.94/x
  3. Step 3: Cross multiply
    418,332.51x = 577,303.37 × 227,345.94
  4. Step 4: Simplify right side
    418,332.51x = 131,247,576,181.09
  5. Step 5: Solve for x
    x = 131,247,576,181.09/418,332.51
  6. Step 6: Final answer
    x = 313,739.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.