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Finding the Fourth Proportional to 636,055.23, 954,223.49 and 209,573.83

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Solution

The fourth proportional to 636,055.23, 954,223.49 and 209,573.83 is: 314,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,055.23 : 954,223.49 = 209,573.83 : x
  2. Step 2: Convert to fraction form
    636,055.23/954,223.49 = 209,573.83/x
  3. Step 3: Cross multiply
    636,055.23x = 954,223.49 × 209,573.83
  4. Step 4: Simplify right side
    636,055.23x = 199,980,272,013.13
  5. Step 5: Solve for x
    x = 199,980,272,013.13/636,055.23
  6. Step 6: Final answer
    x = 314,407.09

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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.