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Finding the Fourth Proportional to 281,054.39, 387,746.12 and 179,061.59

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Solution

The fourth proportional to 281,054.39, 387,746.12 and 179,061.59 is: 247,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,054.39 : 387,746.12 = 179,061.59 : x
  2. Step 2: Convert to fraction form
    281,054.39/387,746.12 = 179,061.59/x
  3. Step 3: Cross multiply
    281,054.39x = 387,746.12 × 179,061.59
  4. Step 4: Simplify right side
    281,054.39x = 69,430,438,180.55
  5. Step 5: Solve for x
    x = 69,430,438,180.55/281,054.39
  6. Step 6: Final answer
    x = 247,035.60

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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.