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Finding the Fourth Proportional to 281,365.48, 388,285.50 and 154,052.92

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Solution

The fourth proportional to 281,365.48, 388,285.50 and 154,052.92 is: 212,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,365.48 : 388,285.50 = 154,052.92 : x
  2. Step 2: Convert to fraction form
    281,365.48/388,285.50 = 154,052.92/x
  3. Step 3: Cross multiply
    281,365.48x = 388,285.50 × 154,052.92
  4. Step 4: Simplify right side
    281,365.48x = 59,816,515,068.66
  5. Step 5: Solve for x
    x = 59,816,515,068.66/281,365.48
  6. Step 6: Final answer
    x = 212,593.65

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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.