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Finding the Fourth Proportional to 336,854.88, 505,134.45 and 126,345.24

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Solution

The fourth proportional to 336,854.88, 505,134.45 and 126,345.24 is: 189,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,854.88 : 505,134.45 = 126,345.24 : x
  2. Step 2: Convert to fraction form
    336,854.88/505,134.45 = 126,345.24/x
  3. Step 3: Cross multiply
    336,854.88x = 505,134.45 × 126,345.24
  4. Step 4: Simplify right side
    336,854.88x = 63,821,333,317.52
  5. Step 5: Solve for x
    x = 63,821,333,317.52/336,854.88
  6. Step 6: Final answer
    x = 189,462.40

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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.