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Finding the Fourth Proportional to 315,237.60, 473,293.80 and 197,139.60

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Solution

The fourth proportional to 315,237.60, 473,293.80 and 197,139.60 is: 295,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,237.60 : 473,293.80 = 197,139.60 : x
  2. Step 2: Convert to fraction form
    315,237.60/473,293.80 = 197,139.60/x
  3. Step 3: Cross multiply
    315,237.60x = 473,293.80 × 197,139.60
  4. Step 4: Simplify right side
    315,237.60x = 93,304,950,414.48
  5. Step 5: Solve for x
    x = 93,304,950,414.48/315,237.60
  6. Step 6: Final answer
    x = 295,982.94

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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.