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Finding the Fourth Proportional to 304,642.79, 457,007.91 and 104,909.55

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Solution

The fourth proportional to 304,642.79, 457,007.91 and 104,909.55 is: 157,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,642.79 : 457,007.91 = 104,909.55 : x
  2. Step 2: Convert to fraction form
    304,642.79/457,007.91 = 104,909.55/x
  3. Step 3: Cross multiply
    304,642.79x = 457,007.91 × 104,909.55
  4. Step 4: Simplify right side
    304,642.79x = 47,944,494,184.54
  5. Step 5: Solve for x
    x = 47,944,494,184.54/304,642.79
  6. Step 6: Final answer
    x = 157,379.38

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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.