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Finding the Fourth Proportional to 489,275.40, 733,913.10 and 134,325.30

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Solution

The fourth proportional to 489,275.40, 733,913.10 and 134,325.30 is: 201,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,275.40 : 733,913.10 = 134,325.30 : x
  2. Step 2: Convert to fraction form
    489,275.40/733,913.10 = 134,325.30/x
  3. Step 3: Cross multiply
    489,275.40x = 733,913.10 × 134,325.30
  4. Step 4: Simplify right side
    489,275.40x = 98,583,097,331.43
  5. Step 5: Solve for x
    x = 98,583,097,331.43/489,275.40
  6. Step 6: Final answer
    x = 201,487.95

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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.