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Finding the Fourth Proportional to 251,387.70, 377,204.40 and 118,281.12

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Solution

The fourth proportional to 251,387.70, 377,204.40 and 118,281.12 is: 177,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,387.70 : 377,204.40 = 118,281.12 : x
  2. Step 2: Convert to fraction form
    251,387.70/377,204.40 = 118,281.12/x
  3. Step 3: Cross multiply
    251,387.70x = 377,204.40 × 118,281.12
  4. Step 4: Simplify right side
    251,387.70x = 44,616,158,900.93
  5. Step 5: Solve for x
    x = 44,616,158,900.93/251,387.70
  6. Step 6: Final answer
    x = 177,479.48

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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.