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Finding the Fourth Proportional to 305,479.76, 458,554.84 and 242,703.41

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Solution

The fourth proportional to 305,479.76, 458,554.84 and 242,703.41 is: 364,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,479.76 : 458,554.84 = 242,703.41 : x
  2. Step 2: Convert to fraction form
    305,479.76/458,554.84 = 242,703.41/x
  3. Step 3: Cross multiply
    305,479.76x = 458,554.84 × 242,703.41
  4. Step 4: Simplify right side
    305,479.76x = 111,292,820,440.47
  5. Step 5: Solve for x
    x = 111,292,820,440.47/305,479.76
  6. Step 6: Final answer
    x = 364,321.43

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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.