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Finding the Fourth Proportional to 377,048.79, 565,843.05 and 137,162.21

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Solution

The fourth proportional to 377,048.79, 565,843.05 and 137,162.21 is: 205,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,048.79 : 565,843.05 = 137,162.21 : x
  2. Step 2: Convert to fraction form
    377,048.79/565,843.05 = 137,162.21/x
  3. Step 3: Cross multiply
    377,048.79x = 565,843.05 × 137,162.21
  4. Step 4: Simplify right side
    377,048.79x = 77,612,280,421.93
  5. Step 5: Solve for x
    x = 77,612,280,421.93/377,048.79
  6. Step 6: Final answer
    x = 205,841.48

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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.