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Finding the Fourth Proportional to 663,576.50, 995,368.40 and 164,940.50

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Solution

The fourth proportional to 663,576.50, 995,368.40 and 164,940.50 is: 247,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,576.50 : 995,368.40 = 164,940.50 : x
  2. Step 2: Convert to fraction form
    663,576.50/995,368.40 = 164,940.50/x
  3. Step 3: Cross multiply
    663,576.50x = 995,368.40 × 164,940.50
  4. Step 4: Simplify right side
    663,576.50x = 164,176,561,580.20
  5. Step 5: Solve for x
    x = 164,176,561,580.20/663,576.50
  6. Step 6: Final answer
    x = 247,411.66

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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.