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Finding the Fourth Proportional to 295,124.39, 442,637.07 and 81,913.97

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Solution

The fourth proportional to 295,124.39, 442,637.07 and 81,913.97 is: 122,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,124.39 : 442,637.07 = 81,913.97 : x
  2. Step 2: Convert to fraction form
    295,124.39/442,637.07 = 81,913.97/x
  3. Step 3: Cross multiply
    295,124.39x = 442,637.07 × 81,913.97
  4. Step 4: Simplify right side
    295,124.39x = 36,258,158,097.64
  5. Step 5: Solve for x
    x = 36,258,158,097.64/295,124.39
  6. Step 6: Final answer
    x = 122,857.20

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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.