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Finding the Fourth Proportional to 462,480.51, 638,325.99 and 281,154

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Solution

The fourth proportional to 462,480.51, 638,325.99 and 281,154 is: 388,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,480.51 : 638,325.99 = 281,154 : x
  2. Step 2: Convert to fraction form
    462,480.51/638,325.99 = 281,154/x
  3. Step 3: Cross multiply
    462,480.51x = 638,325.99 × 281,154
  4. Step 4: Simplify right side
    462,480.51x = 179,467,905,392.46
  5. Step 5: Solve for x
    x = 179,467,905,392.46/462,480.51
  6. Step 6: Final answer
    x = 388,055.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.