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Finding the Fourth Proportional to 281,445.60, 388,397.22 and 166,730.77

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Solution

The fourth proportional to 281,445.60, 388,397.22 and 166,730.77 is: 230,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,445.60 : 388,397.22 = 166,730.77 : x
  2. Step 2: Convert to fraction form
    281,445.60/388,397.22 = 166,730.77/x
  3. Step 3: Cross multiply
    281,445.60x = 388,397.22 × 166,730.77
  4. Step 4: Simplify right side
    281,445.60x = 64,757,766,585.47
  5. Step 5: Solve for x
    x = 64,757,766,585.47/281,445.60
  6. Step 6: Final answer
    x = 230,089.82

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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.