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Finding the Fourth Proportional to 636,310.65, 954,466.20 and 187,031.60

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Solution

The fourth proportional to 636,310.65, 954,466.20 and 187,031.60 is: 280,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,310.65 : 954,466.20 = 187,031.60 : x
  2. Step 2: Convert to fraction form
    636,310.65/954,466.20 = 187,031.60/x
  3. Step 3: Cross multiply
    636,310.65x = 954,466.20 × 187,031.60
  4. Step 4: Simplify right side
    636,310.65x = 178,515,339,338.84
  5. Step 5: Solve for x
    x = 178,515,339,338.84/636,310.65
  6. Step 6: Final answer
    x = 280,547.46

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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.