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Finding the Fourth Proportional to 636,065.53, 954,192.76 and 209,522.57

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Solution

The fourth proportional to 636,065.53, 954,192.76 and 209,522.57 is: 314,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,065.53 : 954,192.76 = 209,522.57 : x
  2. Step 2: Convert to fraction form
    636,065.53/954,192.76 = 209,522.57/x
  3. Step 3: Cross multiply
    636,065.53x = 954,192.76 × 209,522.57
  4. Step 4: Simplify right side
    636,065.53x = 199,924,914,055.82
  5. Step 5: Solve for x
    x = 199,924,914,055.82/636,065.53
  6. Step 6: Final answer
    x = 314,314.97

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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.