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Finding the Fourth Proportional to 625,712.04, 938,743.02 and 205,283.16

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Solution

The fourth proportional to 625,712.04, 938,743.02 and 205,283.16 is: 307,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,712.04 : 938,743.02 = 205,283.16 : x
  2. Step 2: Convert to fraction form
    625,712.04/938,743.02 = 205,283.16/x
  3. Step 3: Cross multiply
    625,712.04x = 938,743.02 × 205,283.16
  4. Step 4: Simplify right side
    625,712.04x = 192,708,133,573.54
  5. Step 5: Solve for x
    x = 192,708,133,573.54/625,712.04
  6. Step 6: Final answer
    x = 307,982.14

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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.