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Finding the Fourth Proportional to 549,100.96, 757,737.18 and 319,664.81

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Solution

The fourth proportional to 549,100.96, 757,737.18 and 319,664.81 is: 441,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,100.96 : 757,737.18 = 319,664.81 : x
  2. Step 2: Convert to fraction form
    549,100.96/757,737.18 = 319,664.81/x
  3. Step 3: Cross multiply
    549,100.96x = 757,737.18 × 319,664.81
  4. Step 4: Simplify right side
    549,100.96x = 242,221,913,568.98
  5. Step 5: Solve for x
    x = 242,221,913,568.98/549,100.96
  6. Step 6: Final answer
    x = 441,124.55

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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.