Home / 281,284.20-388,152.72-160,430.64

Finding the Fourth Proportional to 281,284.20, 388,152.72 and 160,430.64

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Solution

The fourth proportional to 281,284.20, 388,152.72 and 160,430.64 is: 221,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,284.20 : 388,152.72 = 160,430.64 : x
  2. Step 2: Convert to fraction form
    281,284.20/388,152.72 = 160,430.64/x
  3. Step 3: Cross multiply
    281,284.20x = 388,152.72 × 160,430.64
  4. Step 4: Simplify right side
    281,284.20x = 62,271,589,287.34
  5. Step 5: Solve for x
    x = 62,271,589,287.34/281,284.20
  6. Step 6: Final answer
    x = 221,383.18

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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.