Home / 281,416.04-388,350.26-154,091.62

Finding the Fourth Proportional to 281,416.04, 388,350.26 and 154,091.62

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Solution

The fourth proportional to 281,416.04, 388,350.26 and 154,091.62 is: 212,644.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,416.04 : 388,350.26 = 154,091.62 : x
  2. Step 2: Convert to fraction form
    281,416.04/388,350.26 = 154,091.62/x
  3. Step 3: Cross multiply
    281,416.04x = 388,350.26 × 154,091.62
  4. Step 4: Simplify right side
    281,416.04x = 59,841,518,749.07
  5. Step 5: Solve for x
    x = 59,841,518,749.07/281,416.04
  6. Step 6: Final answer
    x = 212,644.31

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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.