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Finding the Fourth Proportional to 487,954.74, 731,370.42 and 188,302.80

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Solution

The fourth proportional to 487,954.74, 731,370.42 and 188,302.80 is: 282,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,954.74 : 731,370.42 = 188,302.80 : x
  2. Step 2: Convert to fraction form
    487,954.74/731,370.42 = 188,302.80/x
  3. Step 3: Cross multiply
    487,954.74x = 731,370.42 × 188,302.80
  4. Step 4: Simplify right side
    487,954.74x = 137,719,097,923.18
  5. Step 5: Solve for x
    x = 137,719,097,923.18/487,954.74
  6. Step 6: Final answer
    x = 282,237.44

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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.