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Finding the Fourth Proportional to 178,873.08, 246,815.82 and 103,407

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Solution

The fourth proportional to 178,873.08, 246,815.82 and 103,407 is: 142,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,873.08 : 246,815.82 = 103,407 : x
  2. Step 2: Convert to fraction form
    178,873.08/246,815.82 = 103,407/x
  3. Step 3: Cross multiply
    178,873.08x = 246,815.82 × 103,407
  4. Step 4: Simplify right side
    178,873.08x = 25,522,483,498.74
  5. Step 5: Solve for x
    x = 25,522,483,498.74/178,873.08
  6. Step 6: Final answer
    x = 142,684.88

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1.5x scale

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.